/ Dictionary / Index S spheroid: Meaning and Definition of Find definitions for: sphe•roid Pronunciation: (sfēr'oid), [key] — Geom. Geom. —n. a solid geometrical figure similar in shape to a sphere, as an ellipsoid. See diag. under —adj. spheroidal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: spheroid (Thesaurus) sphero- spheroidal Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language