segmentation cavity vs blastocoel

segmentation cavity and blastocoel both are nouns.

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

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

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

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

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