n. 1. Scaly dry skin that has been exfoliated, such as dandruff. 2. A loose scaly crust coating a surface, especially of a plant. 3. Any of several fungal diseases of plants characterized by scaly lesions especially on underground parts, such as the tubers of potatoes. [Middle English, probably of Scandinavian origin; see sker-1 in the Appendix of Indo-European roots.] scurfi·ness n. scurfy adj. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.