ClipArt ETC
"A conical pin of hard wood, from 12 to 24 inches long, and from 1 to 3 inches in diameter at the butt, used to open the strands of rope in splicing." -Whitney, 1911

Setting Fid

"A conical pin of hard wood, from 12 to 24 inches long, and from 1 to 3 inches in diameter at the butt,…

A leaf which has "the form of a fiddle or violin; pandurate or panduriform: applied in botany to an obovate leaf which is contracted above the base." -Whitney, 1911

Fiddle-Shaped Leaf

A leaf which has "the form of a fiddle or violin; pandurate or panduriform: applied in botany to an…

"Naut., an ornament at the bow of a ship, over the cutwater, consisting of carved work in the form of a volute or scroll, resembling somewhat that at the head of a violin." -Whitney, 1911

Fiddle Head

"Naut., an ornament at the bow of a ship, over the cutwater, consisting of carved work in the form of…

"Fifth wheel, a horizontal plate, bent to form a whole or part of a circle, placed on the forward axle of a carriage. It is designed to support the fore part of the body while allowing it to turn freely in a horizontal plane." Today, the fifth wheel is used in coupling of trailers and towing trucks. -Whitney, 1911

Fifth Wheel

"Fifth wheel, a horizontal plate, bent to form a whole or part of a circle, placed on the forward axle…

"Fifth wheel, a horizontal plate, bent to form a whole or part of a circle, placed on the forward axle of a carriage. It is designed to support the fore part of the body while allowing it to turn freely in a horizontal plane." Today, the fifth wheel is used in coupling of trailers and towing trucks. -Whitney, 1911

Fifth Wheel

"Fifth wheel, a horizontal plate, bent to form a whole or part of a circle, placed on the forward axle…

"Naut., a contrivance, consisting of two wooden deadeyes and a rope lanyard, for quickly securing any standing rigging shot away in action." -Whitney, 1911

Fighting Stopper

"Naut., a contrivance, consisting of two wooden deadeyes and a rope lanyard, for quickly securing any…

"An ornamental figure, as a statue or bust, on the projecting part of the head of a ship, over the cutwater and immediately under the bowsprit." -Whitney, 1911

Figurehead of Ship

"An ornamental figure, as a statue or bust, on the projecting part of the head of a ship, over the cutwater…

"Files. a, cotter-file when large, and verge- or pivot-file when small; b, square file (parallel or taper); c, banking or watch-pinion file when parallel, and knife-file when tape; d, half-round, nicking, piercing, or round-off file; e, round, gulleting, or rat-tail file; f, triangular, three-square, or saw file; g, equaling, clock-pinion, or endless-screw file when parallel, and slitting, entering, warding, or barrel-hole file when tape; h, cross- or double-half-round file; i, screw-head, feather-edge, or slitting file." -Whitney, 1911

Types of Files

"Files. a, cotter-file when large, and verge- or pivot-file when small; b, square file (parallel or…

"Filoplume. In ornithology, a thread-feather; a thread-like or hair-like feather, with a very slender stem, lacking webs in most or all of its length." -Whitney, 1911

Filoplume of a Goose

"Filoplume. In ornithology, a thread-feather; a thread-like or hair-like feather, with a very slender…

"Fins of Common Perch. D, first dorsal; D', second dorsal; P, pectoral; V, ventral; A, anal; C, caudal." -Whitney, 1911

Fins of Common Perch

"Fins of Common Perch. D, first dorsal; D', second dorsal; P, pectoral; V, ventral; A, anal; C, caudal."…

"In ornithology, pinnatiped; having pinnate feet, the toes being separately furnished with flaps, as in the grebes, coots, phalaropes, fin-foots, etc." -Whitney, 1911

Fin-Footed Coot Foot

"In ornithology, pinnatiped; having pinnate feet, the toes being separately furnished with flaps, as…

"Finial, A. D. 1230, Cathedral of Amiens, France. In architecture, the ornamental termination or apex of a pinnacle, canopy, gable, or the like, consisting usually of a knob or composition of foliage." -Whitney, 1911

Finial from the Cathedral of Amiens

"Finial, A. D. 1230, Cathedral of Amiens, France. In architecture, the ornamental termination or apex…

"Finial, 15th Century. In architecture, the ornamental termination or apex of a pinnacle, canopy, gable, or the like, consisting usually of a knob or composition of foliage." -Whitney, 1911

Finial of the 15th Century

"Finial, 15th Century. In architecture, the ornamental termination or apex of a pinnacle, canopy, gable,…

"Fire-arrows, 14th and 15th centuries. An arrow formerly used, whether shot from a hand-bow or from an engine, having combustibles attached to it for incendiary purposes." -Whitney, 1911

Fire Arrows of the 14th and 15th Centuries

"Fire-arrows, 14th and 15th centuries. An arrow formerly used, whether shot from a hand-bow or from…

"An engine designed to throw a continuous stream of water through a hose upon a conflagration, for the purpose of extinguishing it." -Whitney, 1911

Steam Engine

"An engine designed to throw a continuous stream of water through a hose upon a conflagration, for the…

"Common Firefly (Photinus pyralis). a, larva; b, pupa in its earthen cell; c, beetle. d, e, f, leg, under side of segment, and head of larva." -Whitney, 1911

Common Eastern Firefly

"Common Firefly (Photinus pyralis). a, larva; b, pupa in its earthen cell; c, beetle. d, e, f, leg,…

"An automatic device employed with low-pressure steam-heating furnaces to maintain a uniform temperature." -Whitney, 1911

Fire Regulator

"An automatic device employed with low-pressure steam-heating furnaces to maintain a uniform temperature."…

"Skeleton of Fish (Perch). a, intermaxillaries; b, nasal region; c, dentary bone of mandible; d, orbit of eye; e, supraoccipital crest; f, preoperculum; g, g', vertebral column; h, pectoral fin; i, ventral fin; k, first dorsal fin; l, second dorsal fin; m, anal fin; n, n, caudal fin, making a homocercal tail." -Whitney, 1911

Skeleton of Perch

"Skeleton of Fish (Perch). a, intermaxillaries; b, nasal region; c, dentary bone of mandible; d, orbit…

"In ornithology, having the beak broad and deeply cleft, as a swallow, swift, or goatsucker" or nightjar. -Whitney, 1911

Fissirostral Bill of Nightjar

"In ornithology, having the beak broad and deeply cleft, as a swallow, swift, or goatsucker" or nightjar.…

"A colony of Cercomonas termo, a typical flagellate infusorian." -Whitney, 1911

Cercomonad Flagellate

"A colony of Cercomonas termo, a typical flagellate infusorian." -Whitney, 1911

"A musical instrument of the flute or whistle class, in which the tone is produced by a stream of air striking against a sharp edge." -Whitney, 1911

Flageolet

"A musical instrument of the flute or whistle class, in which the tone is produced by a stream of air…

"In botany, a runner; a weak, creeping shoot sent out from the bottom of the stem, and rooting and forming new plants at the nodes, as in the strawberry." -Whitney, 1911

Strawberry Flagellum

"In botany, a runner; a weak, creeping shoot sent out from the bottom of the stem, and rooting and forming…

"Flamboyant Tracery, Rouen Cathedral, Normandy" showing the intersecting ribs of tracery in windows of Gothic architecture. -Whitney, 1911

Tracery of Rouen Cathedral

"Flamboyant Tracery, Rouen Cathedral, Normandy" showing the intersecting ribs of tracery in windows…

"The reducing flame (as of a blowpipe) is that part of the flame which is deficient in oxygen for combustion (RF in figure), and which has therefore a reducing effect, or, n other words, tends to deprive the substance under examination of oxygen; the oxidizing flame is that part (OF in figure) in which the oxygen is in excess, and which exerts the opposite or oxidizing effect. The distinction is important in blowpipe analysis." -Whitney, 1911

Reducing and Oxidizing Flames

"The reducing flame (as of a blowpipe) is that part of the flame which is deficient in oxygen for combustion…

"A machine for bending the edges of boiler-iron, ship-plates, or sheet-metal to form a curved or bent edge or flange." -Whitney, 1911

Flanging Machine

"A machine for bending the edges of boiler-iron, ship-plates, or sheet-metal to form a curved or bent…

"A projecting edge, rim, or rib on any object, as the rims by which cast-iron pipes are connected together, or the marginal projections on the tires of railroad-car wheels to keep them on the rails." -Whitney, 1911

Flange

"A projecting edge, rim, or rib on any object, as the rims by which cast-iron pipes are connected together,…

"A projecting edge, rim, or rib on any object, as the rims by which cast-iron pipes are connected together, or the marginal projections on the tires of railroad-car wheels to keep them on the rails." -Whitney, 1911

Flange

"A projecting edge, rim, or rib on any object, as the rims by which cast-iron pipes are connected together,…

"A projecting edge, rim, or rib on any object, as the rims by which cast-iron pipes are connected together, or the marginal projections on the tires of railroad-car wheels to keep them on the rails." -Whitney, 1911

Flange

"A projecting edge, rim, or rib on any object, as the rims by which cast-iron pipes are connected together,…

"A shallow frame of wood or iron used in foundries to contain the sand and patterns employed in molding and casting." -Whitney, 1911

Two-Part Flask

"A shallow frame of wood or iron used in foundries to contain the sand and patterns employed in molding…

The Grapevine Flea Beetle (Altica chalybea). "a, leaf infested with larvae; b, larva; c, cocoon; d, beetle." -Whitney, 1911

Grapevine Flea Beetle

The Grapevine Flea Beetle (Altica chalybea). "a, leaf infested with larvae; b, larva; c, cocoon; d,…

"Sarracenia Flesh-fly (Sarcophaga sarraceniae). a, larva; b, pupa; c, fly; d, head and prothoracic joints of larva, showing curved hooks, lower lip, and prothoracic spiracles; e, end of body of larva, showing stigmata, prolegs, and vent; h, tarsal claws of fly with protecting pads; i, antenna of fly." -Whitney, 1911

Sarracenia Flesh Fly

"Sarracenia Flesh-fly (Sarcophaga sarraceniae). a, larva; b, pupa; c, fly; d, head and prothoracic joints…

"Ship's Floor. Nautical, that part of the bottom of a vessel on each side of the keelson which is most nearly horizontal. AA, floor-plates; BBB, keelsons; FF, main frame; K, keel; LL, lightening-holes; RR, reverse frame." -Whitney, 1911

Floor of Ship

"Ship's Floor. Nautical, that part of the bottom of a vessel on each side of the keelson which is most…

"A shaft-bearing secured to the floor, and used for running countershafts and lines when they cannot conveniently be suspended from the ceiling-joists." -Whitney, 1911

Floor Hanger

"A shaft-bearing secured to the floor, and used for running countershafts and lines when they cannot…

"The English name of a gold coin weighing about 55 grains, first issued at Florence in 1252, and having on the obverse a lily and the word 'Florentia.'" -Whitney, 1911

Obverse and Reverse Sides of Gold Florin

"The English name of a gold coin weighing about 55 grains, first issued at Florence in 1252, and having…

"In music, an instrument of the pipe kind, in which the tone is produced by the impact of a current of air upon the edge of a hole in the side of a tube." -Whitney, 1911

Flute

"In music, an instrument of the pipe kind, in which the tone is produced by the impact of a current…

"In armor, ornamented with ridges, corrugations, and the like, which in some cases added also to the utility of the piece as giving greater strength. Suits of armor of the sixteenth century, both Italian and German, are often richly fluted." -Whitney, 1911

Fluted Dossière

"In armor, ornamented with ridges, corrugations, and the like, which in some cases added also to the…

"A device for making flutes in a fabric or article of dress, as a ruffle." -Whitney, 1911

Fluting Iron

"A device for making flutes in a fabric or article of dress, as a ruffle." -Whitney, 1911

"A scissors-shaped implement for fluting or crimping linen, etc. It has small cylindrical fingers, one of which is hollow to hold a heated iron. When the scissors are closed, this heated finger forces the cloth between the two other fingers, thus forming a flute." -Whitney, 1911

Fluting Scissors

"A scissors-shaped implement for fluting or crimping linen, etc. It has small cylindrical fingers, one…

"A case in the form of a book in which to keep fishing-flies. It has leaves of Bristol-board or other stiff material. At the ends of the leaf are small hooks or loops to which the fish-hooks are attached so that the flies may be carried without bending the gut." -Whitney, 1911

Fly Book for Fishing

"A case in the form of a book in which to keep fishing-flies. It has leaves of Bristol-board or other…

Now known as Mayetiola destructor: "Hessian Fly (Cecidomyia destructor). a, larva; b, pupa; c, infested stalk of wheat." -Whitney, 1911

Stages of the Hessian Fly

Now known as Mayetiola destructor: "Hessian Fly (Cecidomyia destructor). a, larva; b, pupa; c, infested…

"A drill to which a steady momentum is imparted by means of a fly-wheel having a reciprocating motion like that of the balance-wheel of a watch." -Whitney, 1911

Fly Drill

"A drill to which a steady momentum is imparted by means of a fly-wheel having a reciprocating motion…

The flying frog is an amphibian "having enormously long webbed toes, enabling it to sustain a kind of flight." -Whitney, 1911

Flying Frog

The flying frog is an amphibian "having enormously long webbed toes, enabling it to sustain a kind of…

"1. A horn used on board a vessel to sound a warning signal to other vessels in foggy weather. 2. A sounding instrument for warning vessels off shore during a fog. The most powerful of these instruments is the siren, or siren fog-horn." -Whitney, 1911

Brown's Siren Foghorn

"1. A horn used on board a vessel to sound a warning signal to other vessels in foggy weather. 2. A…

This architectural sculpted foliage shows the gothic style of Notre Dame de Paris. "Medieval Conventionalized Foliage, Notre Dame, Paris; end of 13th century." -Whitney, 1911

Medieval Conventionalized Foliage

This architectural sculpted foliage shows the gothic style of Notre Dame de Paris. "Medieval Conventionalized…

The tracery on the windows of La Sainte-Chapelle, in Paris, France shows foliations: a leaf pattern common in Gothic architecture. "Foliations in Tracery. Sainte Chapelle, Paris, A. D. 1240." -Whitney, 1911

Tracery Foliations

The tracery on the windows of La Sainte-Chapelle, in Paris, France shows foliations: a leaf pattern…

"They are trumpet-animalcules of the family Stentoridae, with the peristome divided into two lappet-like parts. Folliculina ampulla is an example." -Whitney, 1911

Trumpet Animalcule

"They are trumpet-animalcules of the family Stentoridae, with the peristome divided into two lappet-like…

"Follicle. Fruit of Larkspur. A dry one-celled seed-vessel consisting of a single carpel, and dehiscent only by the ventral suture, as in the milkweed and larkspur." -Whitney, 1911

Larkspur Follicle

"Follicle. Fruit of Larkspur. A dry one-celled seed-vessel consisting of a single carpel, and dehiscent…

"Font, Cathedral of Langres, France; end of 13th century. A repository for the water used in baptism; now, specifically, a basin, usually of marble or other fine stone, permanently fixed within a church, to contain the water for baptism by sprinkling or immersion: distinctively called a baptismal font." -Whitney, 1911

Baptismal Font

"Font, Cathedral of Langres, France; end of 13th century. A repository for the water used in baptism;…

"Bones of Human Foot, or Pes, the third principal segment of the hind limb, consisting of tarsus, metatarsus, and phalanges. a, astralagus; ca, calcaneum; n, navicular, or scaphoid; co, cuboid; c1, c2, c3, entocuneiform, mesocuneiform, and ectocuneiform, or inner, middle, and outer cuneiform bones. The foregoing seven bones constitute the tarsus, and m1 to m5, first to the fifth metatarsal, constitue the metatarsus. The remaining fourteen bones are the phalanges, three to each digit excepting the great toe; h, distal phalanx of the hallux or great toe." -Whitney, 1911

Bones of Human Foot

"Bones of Human Foot, or Pes, the third principal segment of the hind limb, consisting of tarsus, metatarsus,…

"Nautical: A rope extended under a yard from the middle to the yardarm, and under the jib- and spanker-booms, for the men to stand on while reefing or furling." -Whitney, 1911

Footrope of Sailing Vessel

"Nautical: A rope extended under a yard from the middle to the yardarm, and under the jib- and spanker-booms,…

"Diagrams of Foraminifera. A, monothalamian; B, C, polythalamian; D, horizontal, and E, F, vertical sections of the helicoid forms." -Whitney, 1911

Diagrams of Foraminifera

"Diagrams of Foraminifera. A, monothalamian; B, C, polythalamian; D, horizontal, and E, F, vertical…

"Diagram of Ship's Bow. B, bowsprit; F, forecastle; F', forecastle-deck; L, lower deck; M, main deck or spar-deck; S, stem." -Whitney, 1911

Diagram of Ship's Bow

"Diagram of Ship's Bow. B, bowsprit; F, forecastle; F', forecastle-deck; L, lower deck; M, main deck…

"Section of Fortified Wall. (Interior on the left; exterior on the right.) a, a, is the abatis; b, b, the counterscarp; c, c, the palisade; d, d, the scarp; f, f, the fraise; f, e, g, g, the parapet; h, the banquette; and i, g, the breast-height." -Whitney, 1911

Section of Fortified Wall

"Section of Fortified Wall. (Interior on the left; exterior on the right.) a, a, is the abatis; b, b,…

"Forum of Pompeii. A, principal entrance; B, a Corinthian temple; C, the public prison (carcer publicus); D is supposed to have been a horreum, or public granary; E, temple of Venus, the guardian goddess of the city; F, basilica; G, H, I, the curiae, or civil and commercial tribunals; K, a rectangular building which may have served the purpose of a shop for money-changers; L, a portico terminating in an apsis; M, temple of Mercury or Quirinus; N, a building with a large semicircular tribune, which probably constituted the residence of the priests called Augustales." -Whitney, 1911

Forum of Pompeii

"Forum of Pompeii. A, principal entrance; B, a Corinthian temple; C, the public prison (carcer publicus);…

"A roundel, barry wavy of six argent and azure, or more rarely having a greater number of barrulets." -Whitney, 1911

Fountain Charge

"A roundel, barry wavy of six argent and azure, or more rarely having a greater number of barrulets."…

"In heraldry, forked; having the extremities divided into two: said of any bearing, especially of a cross." -Whitney, 1911

Cross Fourché

"In heraldry, forked; having the extremities divided into two: said of any bearing, especially of a…

"Four-way cock, a cock having two passages in the plug and four passage-ways for delivery, or one which unites four pipes so as to deliver from either one at will, according to the position of the valve. Such a cock is used in the continuous air-brake." -Whitney, 1911

Four-Way Cock Valve

"Four-way cock, a cock having two passages in the plug and four passage-ways for delivery, or one which…

"In heraldry, broken asunder. This condition is depicted in different ways: thus, a fesse fracted may be represented as two demi-bars touching at one angle, or as a bar with a piece broken out of the middle and moved away." -Whitney, 1911

Chevron Fracted

"In heraldry, broken asunder. This condition is depicted in different ways: thus, a fesse fracted may…

"Frame of Iron Ship. A, double bottom; B, bracket frame; C, coal-bunkers; D, upper or spar deck; D', upper- or or spar-deck beam; F, main frame; H, hammock-berthing; I, inner bottom plating; K, keel; L, longitudinals; M, main deck; M', main-deck beam; P, outside plating; R, reverse frame; S, boilers; Y, protective deck; Y', protective-deck beam." -Whitney, 1911

Frame of Iron Ship

"Frame of Iron Ship. A, double bottom; B, bracket frame; C, coal-bunkers; D, upper or spar deck; D',…

"A French silver coin and money of account which since 1795 has formed the unit of French monetary system." -Whitney, 1911

Obverse Side of Silver Franc of Henry III

"A French silver coin and money of account which since 1795 has formed the unit of French monetary system."…