diactine

== English == === Etymology === di- + ancient Greek ἀκτίς aktis meaning ray === Adjective === diactine (not comparable) diactinal; having two rays === Noun === diactine (plural diactines) A spicule (of a sponge) that has two pointed arms ==== Related terms ==== diactinal === Anagrams === Dianetic, indicate, anticide, ctenidia, actinide, dianetic