columnaris disease

noun \ˌkäləmˈna(a)rə̇s\
variants: less commonly



Definition of columnaris disease



  1. :  a highly fatal disease of fingerling trout and salmon especially when concentrated in hatchery ponds that is caused by a myxobacterium (Chondrococcus columnaris)

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.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of columnaris disease

New Latin columnaris, specific epithet of Chondrococcus columnaris, species causing the disease, from Late Latin, columnar

Seen and Heard

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


to help become familiar with something

Get Word of the Day daily email!