/ Dictionary / Index G goniometer: Meaning and Definition of Find definitions for: go•ni•om•e•ter Pronunciation: (gō"nē-om'i-tur), [key] — n. an instrument for measuring solid angles, as of crystals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: goniometer (Thesaurus) gonio- gonion Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language