diactinal
adjective
di·ac·ti·nal
(ˈ)dī¦aktənəl,
¦dīˌak¦tīnᵊl
variants
or less commonly diactine
(ˈ)dī¦akˌtīn,
-tə̇n
zoology
: having two rays : pointed at both ends
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Merriam-Webster unabridged
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