Definition of millepore
: any of the stony hydrozoan reef-building corals comprising the order Milleporina with the single recent genus Millepora and like the madrepores with which they constitute the major reef-building corals assuming a variety of branching, encrusting, or massive forms though differing from the madrepores in passing through a free-swimming medusoid stage
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 millepore
New Latin Millepora
Seen and Heard
What made you want to look up millepore? Please tell us where you read or heard it (including the quote, if possible).