plural noun Ec·to·car·pa·ce·ae \-ˌkärˈpāsēˌē\

Definition of Ectocarpaceae

  1. :  a cosmopolitan family of chiefly epiphytic marine brown algae (order Ectocarpales) that includes algae with a thallus of erect branching filaments arising from a creeping filament or layer or sometimes being compacted into a pseudoparenchymatous thallus — see ectocarpus



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 ectocarpaceae

New Latin, from Ectocarpus, type genus + -aceae

Seen and Heard

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


to help become familiar with something

Get Word of the Day daily email!