☞ -act, -actine
-act
I.\ˌakt\ adjective combining form
Etymology: Greek aktis ray — more at actin-
: having (such or so many) rays
< polyact >
< tetract >
— in terms applied to sponge spicules
II.noun combining form
(-s)
: one having (such or so many) rays
< hexact >
< triact >
— in names of sponge spicules
I.
< polyact >
< tetract >
— in terms applied to sponge spicules
II.
< hexact >
< triact >
— in names of sponge spicules