Sphenophyllales
plural noun
Sphe·no·phyl·la·les
| \ ˌsfē(ˌ)nōfə̇ˈlā(ˌ)lēz \
Definition of Sphenophyllales
: an order of fossil plants (subdivision Sphenopsida) coextensive with the genus Sphenophyllum
Test Your Vocabulary
Which Word Does Not Belong?
-
- Which of these words does not mean "nonsense"?

Test your visual vocabulary with our 10-question challenge!
TAKE THE QUIZ
A daily challenge for crossword fanatics.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Share Sphenophyllales