Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

angular leaf spot

noun
variants: or less commonly angular spot

Definition of angular leaf spot 

: a disease of plants in which the leaf spots have angular and usually sharply limited outlines (as that of cotton caused by the bacterium Xanthomonas malvacearum and that of cucumber caused by the bacterium Pseudomonas lachrymans) — see blackfire

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of angular leaf spot

1892, in the meaning defined above

Keep scrolling for more

Learn More about angular leaf spot

Share angular leaf spot

Statistics for angular leaf spot

Look-up Popularity

Time Traveler for angular leaf spot

The first known use of angular leaf spot was in 1892

See more words from the same year

Comments on angular leaf spot

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

Show Comments  Hide Comments 

WORD OF THE DAY

nomothetic

involving abstract or general statements

Get Word of the Day daily email!

Test Your Vocabulary

Liar, Liar Quiz

  • alt-5761dbe2ba986
  • Someone who pretends to be sick in order to avoid work is a:
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Add Diction

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

TAKE THE QUIZ

Love words? Need even more definitions?

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

Words at Play

Ask the Editors

Word Games