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monactine
adjective
mon·ac·tine
\mäˈnaktə̇n, -kˌtīn\
variants: less commonly
monactinal
\-tənəl, ¦mäˌnak¦tīnəl\Definition of monactine
: having a single ray —used of a sponge spicule
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Origin and Etymology of monactine
mon- + -actine or -actinal
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