/ Dictionary / Index S sinciput: Meaning and Definition of Find definitions for: sin•ci•put Pronunciation: (sin'su-put"), [key] — pl. sin•ci•puts, sin•cip•i•ta the forepart of the skull. the upper part of the skull. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sinciput (Thesaurus) sincerity Sinclair 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