海かい綿めん

noun, noun which may take the genitive case particle 'no'

sponge

Refers to the porous sea animal or the material derived from it. Can also be used attributively with の.

• 海かい綿めんは海かい水すいを吸すい込こんで栄えい養ようを取とる。

  Sponges take in seawater to obtain nutrients.

• 台だい所どころの海かい綿めんが古ふるくなったので新あたらしいのを買かった。

  The kitchen sponge got old, so I bought a new one.