basic slag vs slag

basic slag and slag both are nouns.

Word	Noun	Adjective	Verb	Adverb
basic slag	Yes	No	No	No
slag	Yes	No	Yes	No

As nouns, slag is a hypernym of basic slag; that is, slag is a word with a broader meaning than basic slag:

basic slag: slag produced in making steel; low in silica but having large amounts of calcium phosphate; useful as fertilizer
slag: the scum formed by oxidation at the surface of molten metals

Other hypernyms of basic slag include dross, scoria.

basic slag (noun)	slag (noun)
slag produced in making steel; low in silica but having large amounts of calcium phosphate; useful as fertilizer	the scum formed by oxidation at the surface of molten metals

basic slag (verb)	slag (verb)
	convert into slag