||Ca"sus (?), n. [L.] An
event; an occurrence; an occasion; a combination of
circumstances; a case; an act of God. See the Note under
Accident.
Casus belli, an event or combination of
events which is a cause war, or may be alleged as a justification
of war. -- Casus fortuitus, an
accident against which due prudence could not have provided. See
Act of God, under Act. -- Casus
omissus, a case not provided for by the
statute.