from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An act or event that provokes or is used to justify war.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An act seen as justifying or causing a war.
- n. Plural form of casus belli.
from the GNU version of the Collaborative International Dictionary of English
- n. an event or combination of events which is a cause war, or may be alleged as a justification of war.
from The Century Dictionary and Cyclopedia
- n. A matter or occasion of war; an excuse or a reason for declaring war: as, the right of search claimed by Great Britain constituted a casus belli in 1812.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an event used to justify starting a war
New Latin cāsus bellī : Latin cāsus, occasion + Latin bellī, genitive of bellum, war.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin casus ("case") + belli ("of war"). (Wiktionary)