/ Dictionary / Index S SPECT: Meaning and Definition of Find definitions for: SPECT Pronunciation: (spekt), [key] single photon emission computed tomography: a technique for measuring brain function similar to PET. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. specs spectacle 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