blue stain


variants or less commonly blue sap stain
: a bluish discoloration of sapwood caused in many trees and especially conifers by any of various fungi (as of the genera Ceratostomella, Penicillium, or Fusarium) compare blue rot

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!

Dictionary Entries Near blue stain

Cite this Entry

“Blue stain.” Dictionary, Merriam-Webster, Accessed 5 Jun. 2023.

Love words? Need even more definitions?

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