pneumatocyst

气囊

词形变化

pneumatocysts 复数 pneumatocysts

释义与例句

n.
  1. 1.

    A sac or other structure containing air and used for flotation by a marine organism, chiefly used in reference to those of kelps and siphonophores.

    生物

词源

From pneumato- + cyst.

来源：wiktionary