Lanolin and Wool grease

Lanolin noun - A yellow viscous animal oil extracted from wool; a mixture of fatty acids and esters; used in some ointments and cosmetics.

Wool grease is a synonym for lanolin. In some cases you can use "Wool grease" instead a noun "Lanolin".

Wool grease noun - A yellow viscous animal oil extracted from wool; a mixture of fatty acids and esters; used in some ointments and cosmetics.

Lanolin is a synonym for wool grease. You can use "Lanolin" instead a noun phrase "Wool grease".