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
Word History
Etymology
di- + -actinal, -actine