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duodecimal

[doo-uh-des-uh-muh l, dyoo-] /ˌdu əˈdɛs ə məl, ˌdyu-/
adjective
1.
pertaining to twelfths or to the number 12.
2.
proceeding by twelves.
noun
3.
one of a system of numbers based on the number 12.
4.
one of 12 equal parts.
Origin
1705-1715
1705-15; < Latin duodecim twelve + -al1
Related forms
duodecimality, noun
duodecimally, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for duodecimal

duodecimal

/ˌdjuːəʊˈdɛsɪməl/
adjective
1.
relating to twelve or twelfths
noun
2.
a twelfth
3.
one of the numbers used in a duodecimal number system
Derived Forms
duodecimally, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for duodecimal
adj.

1714, from Latin in duodecimo (see duodecimo).

Online Etymology Dictionary, © 2010 Douglas Harper
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duodecimal in Science
duodecimal
  (d'ə-děs'ə-məl)   
Relating to or based on the number 12; having 12 as the base. In the duodecimal number system, each digit represents a multiple of a power of 12 instead of 10. Thus the duodecimal number 24 represents (2 × 121) + (4 × 120), or 28.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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