- a light air-cooled drum-fed gas-operated machine gun used chiefly in World War I
WordReference Random House Unabridged Dictionary of American English © 2020
Militarya light, air-cooled, gas-operated machine gun with a circular magazine, first used in World War I. Also called Lew′is automat′ic, Lew′is machine′ gun′.
- named after I. north, northern. Lewis 1910–15
Collins Concise English Dictionary © HarperCollins Publishers::
Lewis gun n