blastocoel vs blastula

blastocoel and blastula both are nouns.

Word	Noun	Adjective	Verb	Adverb
blastocoel	Yes	No	No	No
blastula	Yes	No	No	No

blastocoel (noun)	blastula (noun)
the fluid-filled cavity inside a blastula	early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs