argulus

noun ar·gu·lus \ˈärgyələs\

Definition of argulus

  1. 1 capitalized :  a common genus of fish lice including forms highly destructive to goldfish and related forms

  2. 2 plural arguli \-ˌlī\ :  a fish louse of the genus Argulus :  carp louse

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 argulus

New Latin, from Argus, mythological being + New Latin -ulus — more at argus


Seen and Heard

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

WORD OF THE DAY

to help become familiar with something

Get Word of the Day daily email!