blue-on-blue

adjective

military of or relating to friendly fireblue-on-blue contacts

Nearby words

blue-green alga, blue-green algae, blue-headed vireo, blue-jeaned, blue-leg, blue-on-blue, blue-pencil, blue-red, blue-ribbon, blue-ribbon jury, blue-ringed octopus

Word Origin for blue-on-blue

C20: from the colour used to mark a country's own troops and allies on a military map

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