1. a system for screening luggage in airports; an agent passes a swab around or inside luggage and then runs the swab through a machine that can detect trace amounts of explosives; [syn: explosive trace detection, ETD]
WordNet (r) 3.0 (2006):
ETD
n 1: a system for screening luggage in airports; an agent passes
a swab around or inside luggage and then runs the swab
through a machine that can detect trace amounts of
explosives [syn: explosive trace detection, ETD]