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# vigesimal

[vahy-jes-uh-muh l] /vaɪˈdʒɛs ə məl/
1.
of, relating to, or based on twenty.
2.
3.
proceeding by twenties.
Origin of vigesimal
1650-1660
1650-60; < Latin vīgēsim(us), variant (with g of vīgintī twenty) of vīcēsimus, vīcēnsimus twentieth + -al1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for vigesimal
Historical Examples
• It counted by units and scores; in other words, it was a vigesimal system.

Various
• This long cycle was an application of the vigesimal system to their reckoning of time.

Various
• The last of these scales is an unusual combination of decimal and vigesimal.

Levi Leonard Conant
• Associated words: vicenary, vigesimal, vigesimation, icosahedron.

Louis A. Flemming
• As the latter is due to finger-reckoning, so the use of the fingers and the toes produced a vigesimal scale.

• Among the almost countless dialects of Africa we find a comparatively small number of vigesimal number systems.

Levi Leonard Conant
• This completes the scanty list of African vigesimal number systems that a patient and somewhat extended search has yielded.

Levi Leonard Conant
• As our knowledge of African languages is extended, new examples of the vigesimal method may be brought to light.

Levi Leonard Conant
• In Asia the vigesimal system is to be found with greater frequency than in Europe or Africa, but it is still the exception.

Levi Leonard Conant
• Any number system which passes the limit 10 is reasonably sure to have either a quinary, a decimal, or a vigesimal structure.

Levi Leonard Conant
British Dictionary definitions for vigesimal

## vigesimal

/vaɪˈdʒɛsɪməl/
1.
relating to or based on the number 20
2.
taking place or proceeding in intervals of 20
3.
twentieth
Word Origin
C17: from Latin vīgēsimus, variant (influenced by vīgintī twenty) of vīcēsimus twentieth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition