curly top

noun Plant Pathology.

a disease of plants, especially beets, characterized by puckered or cupped leaves and stunting or distortion, caused by a virus, Ruga verrucosans.

Origin of curly top

An Americanism dating back to 1900–05

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018