资料来源 : pyDict

第二十的

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

Vigesimal \Vi*ges"i*mal\, a. [L. vigesimus twentieth, from
   viginti twenty.]
   Twentieth; divided into, or consisting of, twenties or twenty
   parts. --Tylor.

资料来源 : WordNet®

vigesimal
     adj : relating to or based on the number twenty