/ Dictionary / Index A antrorse: Meaning and Definition of Find definitions for: an•trorse Pronunciation: (an-trôrs'), [key] — adj. Bot., Zool. bent or directed forward or upward. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: antrorse (Thesaurus) Antron antrum Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language