/ Dictionary / Index U unciform: Meaning and Definition of Find definitions for: un•ci•form Pronunciation: (un'su-fôrm"), [key] — adj. hook-shaped. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. uncial uncinariasis Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language