Vigesimal is a 9 letter English word. It's valid Words with friends word worth 19 points.
You can make 396 anagrams from letters in vigesimal (aegiilmsv).
1650-60; Latin vīgēsim(us), variant (with g of vīgintī twenty) of vīcēsimus, vīcēnsimus twentieth + -al1
It counted by units and scores; in other words, it was a vigesimal system.
This completes the scanty list of African vigesimal number systems that a patient and somewhat extended search has yielded.
Any number system which passes the limit 10 is reasonably sure to have either a quinary, a decimal, or a vigesimal structure.
As our knowledge of African languages is extended, new examples of the vigesimal method may be brought to light.
Associated words: vicenary, vigesimal, vigesimation, icosahedron.
Among the almost countless dialects of Africa we find a comparatively small number of vigesimal number systems.
This long cycle was an application of the vigesimal system to their reckoning of time.
As the latter is due to finger-reckoning, so the use of the fingers and the toes produced a vigesimal scale.
In Asia the vigesimal system is to be found with greater frequency than in Europe or Africa, but it is still the exception.
The last of these scales is an unusual combination of decimal and vigesimal.
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