ring spot

American

noun

Plant Pathology.

any of various plant diseases caused by a virus or fungus and characterized by concentric rings of discoloration or necrosis on the leaves.

Etymology

Origin of ring spot

First recorded in 1905–10

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.

Viral genes have been used to protect papaya plants against the ring spot virus, for example, with no sign of resistance evolving in over a decade of use in Hawaii.

From Scientific American

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