eschar vs scab

eschar and scab both are nouns.

Word	Noun	Adjective	Verb	Adverb
eschar	Yes	No	No	No
scab	Yes	No	Yes	No

As nouns, scab is a hypernym of eschar; that is, scab is a word with a broader meaning than eschar:

eschar: a dry scab formed on the skin following a burn or cauterization of the skin
scab: the crustlike surface of a healing skin lesion

eschar (noun)	scab (noun)
a dry scab formed on the skin following a burn or cauterization of the skin	the crustlike surface of a healing skin lesion
	someone who works (or provides workers) during a strike

eschar (verb)	scab (verb)
	form a scab
	take the place of work of someone on strike