石せっ灰かい海かい綿めん

noun

calcareous sponge

Scientific term for any sponge of the class Calcarea, characterized by calcium carbonate spicules.

• 石せっ灰かい海かい綿めんは炭たん酸さんカルシウムの骨こっ片ぺんを持もつ海かい綿めん動どう物ぶつの一いち群ぐんです。

  Calcareous sponges are a group of sponges that have calcium carbonate spicules.