\Tri*lem"ma\, n. [NL., fr. Gr. ? (see {Tri-}) + {?} any
thing received, in logic, an assumption. Cf. {Dilemma}.]
1. (Logic) A syllogism with three conditional propositions,
   the major premises of which are disjunctively affirmed in
   the minor. See {Dilemma}.
2. A state of things in which it is difficult to determine
   which one of three courses to pursue.