arquebus ar·que·bus UK/ˈɑː.kwɪ.bəs/ US/ˈɑɹ.kwɪ.bəs/ uncommon rare noun 1. an obsolete firearm with a long barrel Synonymsharquebushackbuthagbut Related words Broader terms muzzle loader WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.
