antiferromagnetism vs magnetism

antiferromagnetism and magnetism both are nouns.

Word	Noun	Adjective	Verb	Adverb
antiferromagnetism	Yes	No	No	No
magnetism	Yes	No	No	No

As nouns, magnetism is a hypernym of antiferromagnetism; that is, magnetism is a word with a broader meaning than antiferromagnetism:

antiferromagnetism: magnetic field creates parallel but opposing spins; varies with temperature
magnetism: attraction for iron; associated with electric currents as well as magnets; characterized by fields of force

Other hypernyms of antiferromagnetism include magnetic attraction, magnetic force.

antiferromagnetism (noun)	magnetism (noun)
magnetic field creates parallel but opposing spins; varies with temperature	the branch of science that studies magnetism
	attraction for iron; associated with electric currents as well as magnets; characterized by fields of force