amtrac

or am·track

[ am-trak ]
/ ˈæmˌtræk /

noun

Origin of amtrac

First recorded in 1940–45; am(phibious) + trac(tor)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Word Origin and History for amtrac

amtrac


n.

amphibious assault vehicle, 1944, from amphibious + tractor.

Online Etymology Dictionary, © 2010 Douglas Harper