Breadcrumb Home > Thesaurus > P Synonyms of pilus Find synonyms for: Noun 1. hair, pilus, filament, filum usage: any of the cylindrical filaments characteristically growing from the epidermis of a mammal; "there is a hair in my soup" 2. pilus, hair usage: hairlike structure especially on the surface of a cell or microorganism WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of pilus (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: ibernonglish Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language