/ Thesaurus / D Synonyms of duodecimal system Find synonyms for: Noun1. duodecimal number system, duodecimal system, positional notation, positional representation systemusage: a positional system of numeration that uses duodecimal digits and a radix of twelveWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language