vigesimal

American  

[vahy-jes-uh-muhl] / vaɪˈdʒɛs ə məl /

adjective

1. of, relating to, or based on twenty.

2. twentieth.

3. proceeding by twenties.

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vigesimal British  

/ vaɪˈdʒɛsɪməl /

adjective

1. relating to or based on the number 20

2. taking place or proceeding in intervals of 20

3. twentieth

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Etymology

Origin of vigesimal

First recorded in 1650–60; from Latin vīgēsim(us), variant (with g of vīgintī “twenty”) of vīcēsimus, vīcēnsimus “twentieth” + -al ¹

Example Sentences

This may mean that the people who lived in what is now France used a base-20 or vigesimal number system.

From Literature

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

From Project Gutenberg

Proceeding to higher numbers, it is interesting to note that they also proceed on the vigesimal system, although this has not heretofore been distinctly shown.

From Project Gutenberg

I am inclined to think with Dr. Förstemann that it was rather in consequence of the use of the vigesimal system in representing numbers.

From Project Gutenberg

In any unmixed vigesimal scale the word for 400 must be a simple word, and that number must be taken as the vigesimal unit corresponding to 100 in the decimal scale.

From Project Gutenberg