/ Dictionary / Index A astrometry: Meaning and Definition of Find definitions for: as•trom•e•try Pronunciation: (u-strom'i-trē), [key] — n. the branch of astronomy that deals with the measurement of the positions and motions of the celestial bodies. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: astrometry (Thesaurus) astrometric binary astron. Related Content Daily Word Quiz: pedagogy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language