资料来源 : pyDict

三个字的,由三个字而成的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Triliteral \Tri*lit"er*al\, a. [Pref. tri- + literal.]
   Consisting of three letters; trigrammic; as, a triliteral
   root or word. -- n. A triliteral word.