vigesimal

[ vahy-jes-uh-muh l ]
/ vaɪˈdʒɛs ə məl /

adjective

of, relating to, or based on twenty.
proceeding by twenties.

Origin of vigesimal

1650–60; < Latin vīgēsim(us), variant (with g of vīgintī twenty) of vīcēsimus, vīcēnsimus twentieth + -al1
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Examples from the Web for vigesimal

British Dictionary definitions for vigesimal

vigesimal

/ (vaɪˈdʒɛsɪməl) /

adjective

relating to or based on the number 20
taking place or proceeding in intervals of 20
twentieth

Word Origin for vigesimal

C17: from Latin vīgēsimus, variant (influenced by vīgintī twenty) of vīcēsimus twentieth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012