blastodisc vs blastoderm

blastodisc and blastoderm both are nouns.

Word	Noun	Adjective	Verb	Adverb
blastodisc	Yes	No	No	No
blastoderm	Yes	No	No	No

As nouns, blastodisc and blastoderm are synonyms defined as:

blastodisc and blastoderm: a layer of cells on the inside of the blastula

Other synonyms of blastodisc include germinal area, germinal disc.

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