Pla·gi·os·to·mi | \ ˌplājēˈästəˌmī \
Definition of Plagiostomi
in some especially former classifications
: a group of fishes more or less exactly equivalent to Chondrichthyes or more restrictedly an order including the existing sharks and rays as distinguished from the chimaeras and the extinct primitive groups Pleuropterygii and Ichthyotomi — compare selachii
Keep scrolling for more
Love words? Need even more definitions?Merriam-Webster unabridged
Words at Play
- Are We Entering 'Uncharted' or 'Unchartered' Waters?
- Complaining About 'Obnoxious'
- 6 Words That Didn’t Always Describe Food
- 'Arrive At' vs. 'Arrive To': A Very Nerdy Analysis
Ask the Editors