海綿

海绵
hǎimián
  1. (zoology) sea sponge
  2. (esp.) dried sea sponge
  3. sponge (made from polyester or cellulose etc)
  4. foam rubber

CEDICT

Entry Composition

1 海 hǎi
  1. ocean
  2. sea
  3. great number of people or things
  4. (dialect) numerous

classifiers: 個, 片
2 綿 mián
  1. silk floss
  2. continuous
  3. soft
  4. weak
  5. mild-mannered (dialect)