any of the chiefly tropical ants of the suborder Dorylinae that travel in vast swarms, preying mainly on other insects.
Origin of army ant
First recorded in 1870–75
Also called driver ant, legionary ant.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for army ant
He only feared one kind of ant, the army-ant, which sometimes travels in hordes of millions, eating all that it comes upon.The Mad Planet|Murray Leinster
British Dictionary definitions for army ant
any of various mainly tropical American predatory ants of the subfamily Dorylinae, which live in temporary nests and travel in vast hordes preying on other animalsAlso called: legionary ant See also driver ant
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012