adjective hex·ac·ti·nal \¦hek(ˌ)sak¦tīnəl, (ˈ)hek¦saktənəl\
variants: or


\(ˈ)hek¦sakˌtīn, -tə̇n\

Definition of hexactinal

  1. :  having six rays hexactinal sponge spicules

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Origin and Etymology of hexactinal

hexa- + -actinal or -actine

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a brief usually trivial fact

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