Dictionary.com
definitions

driver ant

noun
  1. army ant.

Origin of driver ant

First recorded in 1855–60
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for driver ant

driver ant

noun
  1. any of various tropical African predatory ants of the subfamily Dorylinae, which live in temporary nests and travel in vast hordes preying on other animalsSee also army 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