海綿體

erectile tissue (genital) / corpus cavernosum

surname Hai

ocean / sea / CL:個|个[ge4],片[pian4] / great number of people or things / (dialect) numerous

sponge (zoology) / sponge (piece of absorbent material, either natural or made from plastic etc) / foam rubber

silk floss / continuous / soft / weak / mild-mannered (dialect)

body / form / style / system / substance / to experience / aspect (linguistics)