pythium

noun
pyth·​i·​um | \ ˈpithēəm\

Definition of pythium

1 capitalized : a genus of destructive root-parasitic fungi (family Pythiaceae) having filamentous sporangia, smooth-walled spherical oogonia, and stalked antheridia and including forms (as P. debaryanum) that cause damping-off
2 plural -s : any fungus of the genus Pythium pythium root necrosis

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 pythium

New Latin, from Greek pythein to cause to rot + New Latin -ium

Keep scrolling for more

Comments on pythium

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

WORD OF THE DAY

having no equal

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Latin Quiz

  • roman forum
  • Which of the following months comes from a Latin word for “ten”?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Dictionary Devil

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!