Pronunciation: (sklēr'u-tōm", skler'-), [key]
1. Embryol.the part of a mesodermal somite contributing to the development of the vertebrae and ribs.
2. Surg.an instrument for use in performing a sclerotomy.
3. Zool.a fibrous partition separating successive myotomes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.