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snow mold

American  

noun

Plant Pathology.

  1. a disease of cereals and other grasses, characterized by a dense, cottony growth that covers the affected parts as the snow melts in the spring, caused by any of several fungi of the genera Calonectria, Fusarium, Pythium, and Typhula.

  2. any fungus causing this disease.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Ugly gray circles on the lawn is a sign of snow mold.

From Seattle Times • Mar. 4, 2019

Start by dethatching the lawn, which will reverse the effects of snow mold.

From Seattle Times • Mar. 4, 2019

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.