Breadcrumb Home > Thesaurus > F Synonyms of femur Find synonyms for: Noun 1. femur, thighbone, femoris, leg bone usage: the longest and thickest bone of the human skeleton; extends from the pelvis to the knee WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of femur (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: meretricious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language