Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

helminthosporin

noun
hel·​min·​tho·​spo·​rin | \(ˌ)helˌmin(t)thəˈspōrə̇n\
plural -s

Definition of helminthosporin 

: a dark maroon crystalline phenolic pigment C15H10O5 derived from anthraquinone and formed by the action of certain molds (as Helminthosporium gramineum) on sugar

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!

History and Etymology for helminthosporin

New Latin, Helminthosporium + English -in

Keep scrolling for more

Learn More about helminthosporin

Share helminthosporin

Statistics for helminthosporin

Look-up Popularity

Comments on helminthosporin

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

Show Comments  Hide Comments 

WORD OF THE DAY

epitome

a typical or ideal example

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

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