Definition of Sphenophyllales
:an order of fossil plants (subdivision Sphenopsida) coextensive with the genus Sphenophyllum
What's Trending Now
More Trending Words
Sphenophyllales
plural noun
Sphe·no·phyl·la·les
\
ˌsfē(ˌ)nōfə̇ˈlā(ˌ)lēz
\
From the M-W Editors
There's more!
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 sphenophyllales
New Latin, from Sphenophyllum + -ales
Seen and Heard
What made you want to look up Sphenophyllales? Please tell us where you read or heard it (including the quote, if possible).
