The definition of an infantry is a unit of soldiers who move and fight on foot.(noun)
An example of an infantry is a group of Marine ground forces.
See infantry in Webster's New World College Dictionary
noun pl. infantries
Origin: Fr infanterie < It infanteria < infante, very young person, knight's page, foot soldier < L infans: see infant
See infantry in American Heritage Dictionary 4
noun pl. in·fan·tries
Origin: French infanterie
Origin: , from Old French
Origin: , from Old Italian infanteria
Origin: , from infante, youth, foot soldier
Origin: , from Latin īnfāns, īnfant-, infant; see infant.
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