wool grease vs lanolin

wool grease and lanolin both are nouns.

Word	Noun	Adjective	Verb	Adverb
wool grease	Yes	No	No	No
lanolin	Yes	No	No	No

As nouns, wool grease and lanolin are synonyms defined as:

wool grease and lanolin: a yellow viscous animal oil extracted from wool; a mixture of fatty acids and esters; used in some ointments and cosmetics

Other synonyms of wool grease include wool fat.

wool grease (noun)	lanolin (noun)
a yellow viscous animal oil extracted from wool; a mixture of fatty acids and esters; used in some ointments and cosmetics	an emollient containing wool fat (a fatty substance obtained from the wool of sheep)
	a yellow viscous animal oil extracted from wool; a mixture of fatty acids and esters; used in some ointments and cosmetics