actine
noun
ac·tine
| \ ˈak-ˌtīn, -tən\
plural -s
Definition of actine
(Entry 1 of 2)
: a star-shaped spicule (as of a sponge)
-actine
adjective combining form
\ ¦ak-(ˌ)tīn, -tən\
Definition of -actine (Entry 2 of 2)
: having (such or so many) rays
discoactine pentactine
—especially in terms applied to sponge spicules
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