tri·actinal
| \ (ˈ)trī¦aktənəl, ¦trīˌak¦tīnᵊl \
variants:
or less commonly triactine \
(ˈ)trī¦akˌtīn , -tə̇n
\
Definition of triactinal
: having three rays
a triactinal sponge spicule
Test Your Vocabulary
Name That Food
-
- Name these cookies!

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 triactinal