Definition of trophozooid
1 : an imperfect zooid or individual of the sexual generation of some free-swimming tunicates that never becomes sexually mature or detached from its parent
2 : a nutritive zooid of a scyphozoan colony
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!
Origin and Etymology of trophozooid
troph- + zooid
First Known Use: 1888
Seen and Heard
What made you want to look up trophozooid? Please tell us where you read or heard it (including the quote, if possible).