noun Gno·mo·nia \nōˈmōnēə\

Definition of Gnomonia

  1. :  a genus (the type of the family Gnomoniaceae) of ascomycetous fungi having rostrate perithecia and hyaline 2-celled to 4-celled ascospores

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 gnomonia

New Latin, from Greek gnōmōn carpenter's square + New Latin -ia; from the shape of the ostiole

Seen and Heard

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


a rounded knoll or a ridge of ice

Get Word of the Day daily email!