/ Dictionary / Index S sclerotome: Meaning and Definition of Find definitions for: scle•ro•tome Pronunciation: (sklēr'u-tōm", skler'-), [key] — n. the part of a mesodermal somite contributing to the development of the vertebrae and ribs. an instrument for use in performing a sclerotomy. a fibrous partition separating successive myotomes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sclerotized sclerotomy Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language