blastodisc vs germinal disc

blastodisc and germinal disc both are nouns.

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

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

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

Other synonyms of blastodisc include blastoderm, germinal area.

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