Breadcrumb Home > Thesaurus > C Synonyms of cotangent Find synonyms for: Noun 1. cotangent, cotan, trigonometric function, circular function usage: ratio of the adjacent to the opposite side of a right-angled triangle WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of cotangent (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: terraincognita Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language