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.

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.

• A circumstance in which a choice must be made between three options that seem equally undesirable.
  
• (the trilemma) A form of apologetics meant to prove the divinity of Jesus.