/ Dictionary / Index U uncus: Meaning and Definition of Find definitions for: un•cus Pronunciation: (ung'kus), [key] — pl. un•ci any hook-shaped or curved part of a body process, esp. the hippocampal gyrus in the temporal lobe of the brain. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: uncus (Thesaurus) uncurl uncut Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language