Air-engine Small 248×320 Medium 496×640 Large 794×1024 Download Tiff Original 1861×2400 | (707.7 KB) Description "A motor employing the elastic force of air expanded by heat, or air compressed by means of another and separate motor, which is generally a steam engine."-Whitney, 1902 Keywords air, engine, motor, steam Galleries Air Pumps and Fans Source: William Dwight Whitney, The Century Dictionary, an Encyclopedic Lexicon of the English Language (New York: The Century Co., 1902)I-123