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duodecimal

(do̵̅o̅′ō des′ə məl, dyo̵̅o̅′-)

adjective

relating to twelve or twelfths
consisting of or counting by twelves or powers of twelve

Origin: < L duodecim, twelve (< duo, two + decem, ten) + -al

noun

one twelfth
Math. a system of numeration with twelve as its base, rather than ten as in the decimal system

See duodecimal in American Heritage Dictionary 4

adjective

Of, relating to, or based on the number 12: the duodecimal number system.
Of or relating to twelfths.

noun

A twelfth.

Origin:

Origin: From Latin duodecimus, twelfth

Origin: , from duodecim, twelve

Origin: : duo, two; see dwo- in Indo-European roots

Origin: + decem, ten; see dekm̥ in Indo-European roots

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