/ Dictionary / Index L lancet arch: Meaning and Definition of Find definitions for: lan'cet arch" Pronunciation: [key] — Archit. Archit. an arch having a head that is acutely pointed. See illus. under Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lancet lancet clock Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language