Definition of Gephyrea
: a probably artificial group of marine worms variously regarded as a phylum or as a class of Annelida, including Echiuroidea, Sipunculoidea, and Priapuloidea, and comprising worms that are unsegmented as adults and have coeloms and separate sexes and typically a single pair of nephridia
gephyrean\jəˈfirēən, ¦jefə¦rēən\ adjective or noun
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 gephyrea
New Latin, from Greek gephyra bridge; perhaps akin to Armenian kamurj bridge
Seen and Heard
What made you want to look up Gephyrea? Please tell us where you read or heard it (including the quote, if possible).