layer vs artifact

layer and artifact both are nouns.

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

As nouns, artifact is a hypernym of layer; that is, artifact is a word with a broader meaning than layer:

Other hypernyms of layer include artefact.

layer (noun)	artifact (noun)
thin structure composed of a single thickness of cells	a man-made object taken as a whole
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)	artifact (verb)
make or form a layer