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Definition of: duodecimal
(d
′ō·des′ə·məl, dy′-) adjective
Pertaining to twelve; reckoning by twelves.
—noun
1. One of the numbers used in duodecimal arithmetic; a twelfth.
2. plural A method of computing by twelves instead of by tens. [<L duodecimus twelfth <duodecim twelve]
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