cri·noi·dal
| \ (ˈ)krī¦nȯidᵊl, krə̇ˈ- \
Definition of crinoidal
: of or relating to crinoids : consisting of or containing crinoids
crinoidal limestone
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Merriam-Webster unabridged
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Time Traveler for crinoidal
The first known use of crinoidal was in 1824
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