floc·​cus | \ ˈfläkəs \
plural flocci\ -​äˌkī , -​äˌkē , -​äkˌsī , -​äkˌsē \

Definition of floccus

1 : a tuft of woolly hairs on a plant specifically : a mass of hyphal filaments or portion of mycelium of a fungus
2 [New Latin, from Latin] : one of the small masses or tufts making up certain cloud formations

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 floccus

Latin, akin to Old High German blaha coarse linen, Old Swedish blā, blār oakum, Old Norse blæja cloth, bed sheet

Keep scrolling for more

Learn More about floccus

Statistics for floccus

Cite this Entry

“Floccus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/floccus. Accessed 21 Sep. 2020.

Comments on floccus

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


Test Your Vocabulary

Homophone Quiz

  • three bears two of them look like theyre whispering to a third bear who looks chuffed to be the center of attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
Spell It

Can you spell these 10 commonly misspelled words?


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!