VIGESIMAL


Meaning of VIGESIMAL in English

[ vɪ'dʒɛsɪm(ə)l , vʌɪ- ]

■ adjective rare relating to or based on the number twenty.

Origin

C17: from L. vigesimus (from viginti 'twenty') + -al .

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.