blastocoele vs cleavage cavity

blastocoele and cleavage cavity both are nouns.

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

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

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

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

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