Emily Dickinson Lexicon

INF'ANT-RY, n. [Fr. infanterie; Sp. infanteria; It. fanteria. See Infant.]

In military affairs, the soldiers or troops that serve on foot, as distinguished from cavalry; as, a company, regiment or brigade of infantry. In some armies, there have been heavy-armed infantry, and light-armed or light infantry, according to their manner of arming and equipping.