Definition of Teleostei
in some classifications
: a subclass or other division of fishes nearly or exactly equivalent to Teleostomi
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 teleostei
New Latin, from 2tele- + -ostei (from Greek osteon bone) — more at osseous
Seen and Heard
What made you want to look up Teleostei? Please tell us where you read or heard it (including the quote, if possible).