blastoderm vs germinal disc

blastoderm and germinal disc both are nouns.

Word	Noun	Adjective	Verb	Adverb
blastoderm	Yes	No	No	No
germinal disc	Yes	No	No	No

As nouns, blastoderm and germinal disc are synonyms defined as:

blastoderm and germinal disc: a layer of cells on the inside of the blastula

Other synonyms of blastoderm include blastodisc, germinal area.

blastoderm (noun)	germinal disc (noun)
a layer of cells on the inside of the blastula	a layer of cells on the inside of the blastula