Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

leaf roll

noun

Definition of leaf roll

  1. :  any of various plant diseases characterized especially by an upward rolling of the leaf margins; especially :  a disease of the potato caused by a single-stranded RNA virus (species Potato leafroll virus of the genus Polerovirus, family Luteoviridae) transmitted by aphids




Seen and Heard

What made you want to look up leaf roll? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 8, 2016

to clear from accusation or blame

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

duvet pince-nez kittly-benders spindrift
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ