/ Thesaurus / A Synonyms of alpha fetoprotein Find synonyms for: Noun1. alpha fetoprotein, alpha foetoprotein, AFP, fetoprotein, foetoproteinusage: an abnormally large amount of this fetoprotein in the fetus can signal an abnormality of the neural tube (as spina bifida or anencephaly)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language