from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A bulletproof jacket or vest.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A special piece of clothing worn by soldiers to protect them from shrapnel and grenade fragments, other non-direct fire and battlefield debris. Sometimes used informally to connotate any of the various forms of a bullet-proof vest.
Sorry, no etymologies found.
In tactical operations he was often suited up in flak jacket and Nomex hood and was usually one of the first officers through the door in a dynamic barricade entry.