Breadcrumb Home > Thesaurus > S Synonyms of skullcap Find synonyms for: Noun 1. skullcap, cap usage: rounded brimless cap fitting the crown of the head 2. skullcap, helmetflower, herb, herbaceous plant usage: a herbaceous plant of the genus Scutellaria which has a calyx that, when inverted, resembles a helmet with its visor raised 3. calvaria, skullcap, bone, os usage: the dome of the skull WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of skullcap (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: cognoscenti Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language