/ Thesaurus / G Synonyms of genus mastigoproctus Find synonyms for: Noun1. Mastigoproctus, genus Mastigoproctus, arthropod genususage: giant whip scorpionsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language