/ Dictionary / Index S semidome: Meaning and Definition of Find definitions for: sem•i•dome Pronunciation: (sem'ē-dōm", sem'ī-), [key] — n. half a dome, esp. as formed by a vertical section, as over a semicircular apse. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. semidivine semidomesticated Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language