sea oak

noun

1
: any of various rockweeds (especially Fucus vesiculosus and F. serratus)
2
British : a sertularian hydroid (Dynamena punila) that forms a small much-branched arborescent colony with a tough horny skeleton into which the polyps can contract

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!

Dictionary Entries Near sea oak

Cite this Entry

“Sea oak.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sea%20oak. Accessed 29 Nov. 2024.

Love words? Need even more definitions?

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