D defs.my
Entry 2 senses Webster, 1913

Trilemma

· Tri·lem·ma · IPA /tɹaɪˈlɛmə/
01 n. A syllogism with three conditional propositions, the major premises of which are disjunctively affirmed in the minor. See Dilemma.
  1. 1.
    A syllogism with three conditional propositions, the major premises of which are disjunctively affirmed in the minor. See Dilemma.(Logic) See: Dilemma
  2. 2.
    A state of things in which it is difficult to determine which one of three courses to pursue.