'Vigesimal' definitions:
Definition of 'vigesimal'
From: WordNet
adjective
Relating to or based on the number twenty
Definition of 'Vigesimal'
From: GCIDE
- Vigesimal \Vi*ges"i*mal\, a. [L. vigesimus twentieth, from viginti twenty.] Twentieth; divided into, or consisting of, twenties or twenty parts. --Tylor. [1913 Webster]