囊胚腔; 胚泡腔
Blastocoele \Blas"to*c[oe]le\, n. [Gr. blasto`s sprout + koi^los hollow.] (Biol.) The cavity of the blastosphere, or segmentation cavity.
blastocoele n : the fluid-filled cavity inside a blastula [syn: {blastocoel}, {blastocele}, {segmentation cavity}, {cleavage cavity}]