Definition of Zoanthus
: a large genus (the type of the family Zoanthidae) of zoanthidean colonial polyps that are widely distributed in tropical seas, are united at their bases by stolons, resemble groups of small anemones, and have short, brightly colored tentacles
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 zoanthus
New Latin, from zo- + Greek anthos flower — more at anthology
Seen and Heard
What made you want to look up Zoanthus? Please tell us where you read or heard it (including the quote, if possible).