blastocele vs cleavage cavity

blastocele and cleavage cavity both are nouns.

Word	Noun	Adjective	Verb	Adverb
blastocele	Yes	No	No	No
cleavage cavity	Yes	No	No	No

As nouns, blastocele and cleavage cavity are synonyms defined as:

blastocele and cleavage cavity: the fluid-filled cavity inside a blastula

Other synonyms of blastocele include blastocoel, blastocoele, segmentation cavity.

blastocele (noun)	cleavage cavity (noun)
the fluid-filled cavity inside a blastula	the fluid-filled cavity inside a blastula