Tham·nid·i·um | \thamˈnidēəm\

Definition of Thamnidium 

: a genus (the type of the family Thamnidiaceae) of molds related to the typical bread molds and characterized by branched sporangiophores and sporangia consisting of a large terminal one with a columella and smaller lateral sporangioles without columella — compare whisker sense 2c

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 Thamnidium

New Latin, from thamn- + -idium

Keep scrolling for more

Learn More about Thamnidium

Share Thamnidium

Statistics for Thamnidium

Look-up Popularity

Comments on Thamnidium

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


exaggeratedly or childishly emotional

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

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