A porous mass of interlacing fibers the forms the internal skeleton of various marine animals and usable to absorb water or any porous rubber or cellulose product similarly used.

• 纤维交织而成的多孔团块，状如许多海洋动物的骨骼，能用于吸水；任何有类似用途的多孔橡胶或纤维制品。