germinal area vs germinal disc

germinal area and germinal disc both are nouns.

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

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

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

Other synonyms of germinal area include blastoderm, blastodisc.

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