/ Dictionary / Index S sickle cell: Meaning and Definition of Find definitions for: sick'le cell" Pronunciation: [key] — Pathol. Pathol. an abnormal red blood cell having an elongated, crescentlike shape due to the presence of an abnormal hemoglobin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sicklebill sickle cell anemia 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