triactinal
adjective
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
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