Definition of ichthyopterygium
: the vertebrate limb when having the form of a fin whether as a definitive organ or in the course of individual or evolutionary development; especially : any of the paired fins that are the typical limbs of fishes — compare chiropterygium
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 ichthyopterygium
New Latin, from ichthy- + Greek pterygion small wing, fin, diminutive of pteryg-, pteryx wing — more at pteryg-
Seen and Heard
What made you want to look up ichthyopterygium? Please tell us where you read or heard it (including the quote, if possible).