blastocele vs segmentation cavity

blastocele and segmentation cavity both are nouns.

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

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

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

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

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