helminthosporin

noun

hel·​min·​tho·​spo·​rin

(ˌ)helˌmin(t)thəˈspōrə̇n

plural -s

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

Word History

Etymology

New Latin, Helminthosporium + English -in

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!