blastosphere vs blastospheric

blastosphere is a noun but blastospheric is not a noun.

Word	Noun	Adjective	Verb	Adverb
blastosphere	Yes	No	No	No
blastospheric	No	Yes	No	No

blastosphere (noun)	blastospheric (noun)
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

blastosphere (adjective)	blastospheric (adjective)
	of or relating to a blastula