/ Thesaurus / M Synonyms of mephobarbital Find synonyms for: Noun1. mephobarbital, Mebaral, barbiturate, anticonvulsant, anticonvulsant drug, antiepileptic, antiepileptic drugusage: a long-acting crystalline barbiturate (trade name Mebaral) used as a sedative and as an anticonvulsant in the treatment of epilepsyWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: abdicate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language