Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

spiny clotbur

noun
variants: or spiny cocklebur

Definition of spiny clotbur 

: a European cocklebur (Xanthium spinosum) naturalized widely as a weed in waste grounds and having 3-branched spines at the axils of the leaves

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!

Learn More about spiny clotbur

Share spiny clotbur

Resources for spiny clotbur

Cite Time Traveler Time Traveler! Explore the year a word first appeared

Dictionary Entries near spiny clotbur

spiny anteater

spin yarns

spiny catfish

spiny clotbur

spiny crawfish

spiny dogfish

spiny dormouse

Statistics for spiny clotbur

Look-up Popularity

Comments on spiny clotbur

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

Show Comments  Hide Comments 

WORD OF THE DAY

rebuff

to reject or criticize sharply

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
True or False

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

TAKE THE QUIZ
Bee Cubed

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