Pronunciation: (skli-rō'sis), [key]
—pl. -sesPronunciation: (-sēz). [key]
1. Pathol.a hardening or induration of a tissue or part, or an increase of connective tissue or the like at the expense of more active tissue.
2. Bot.a hardening of a tissue or cell wall by thickening or lignification.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.