lipid vs macromolecule

lipid and macromolecule both are nouns.

Word	Noun	Adjective	Verb	Adverb
lipid	Yes	No	No	No
macromolecule	Yes	No	No	No

As nouns, macromolecule is a hypernym of lipid; that is, macromolecule is a word with a broader meaning than lipid:

lipid: an oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins and carbohydrates)
macromolecule: any very large complex molecule; found only in plants and animals

Other hypernyms of lipid include supermolecule.

lipid (noun)	macromolecule (noun)
an oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins and carbohydrates)	any very large complex molecule; found only in plants and animals