ring spot

noun

1
: any of various plant diseases caused by viruses (genus Nepovirus of the family Comoviridae) and marked by circular lesions of usually chlorotic or necrotic tissue
2
: a turf disease caused by an ascomycetous fungus (Leptosphaeria korrae synonym Ophiosphaerella korrae) and marked by circular patches or rings of dead grass

Word History

First Known Use

1913, in the meaning defined at sense 1

Time Traveler
The first known use of ring spot was in 1913

Dictionary Entries Near ring spot

Cite this Entry

“Ring spot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ring%20spot. Accessed 21 Mar. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!


Challenging Standardized Test Words, Vol. 2

  • a pencil broken in half on top of a test answer sheet
  • The business’s new computer system proved not to be a panacea.
Name That Thing

You know what it looks like… but what is it called?

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY