/ Dictionary / Index S sphene: Meaning and Definition of Find definitions for: sphene Pronunciation: (sfēn), [key] — n. a mineral, calcium titanium silicate, CaTiSiO, occurring as an accessory mineral in a variety of &hasp;crystalline &hasp;rocks, &hasp;usually &hasp;in &hasp;small &hasp;wedge-shaped &hasp;crystals. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sphen- sphenic Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language