layer vs blastodisc

layer and blastodisc both are nouns.

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

As nouns, blastodisc is a hyponym of layer; that is, blastodisc is a word with a more specific, narrower meaning than layer:

Other hyponyms of layer include blastoderm, germinal area, germinal disc, hypodermis.

layer (noun)	blastodisc (noun)
thin structure composed of a single thickness of cells	a layer of cells on the inside of the blastula
a hen that lays eggs
single thickness of usually some homogeneous substance
an abstract place usually conceived as having depth
a relatively thin sheetlike expanse or region lying over or under another

layer (verb)	blastodisc (verb)
make or form a layer