reductivism vs art movement

reductivism and art movement both are nouns.

Word	Noun	Adjective	Verb	Adverb
reductivism	Yes	No	No	No
art movement	Yes	No	No	No

As nouns, art movement is a hypernym of reductivism; that is, art movement is a word with a broader meaning than reductivism:

reductivism: an art movement in sculpture and painting that began in the 1950s and emphasized extreme simplification of form and color
art movement: a group of artists who agree on general principles

Other hypernyms of reductivism include artistic movement.

reductivism (noun)	art movement (noun)
an art movement in sculpture and painting that began in the 1950s and emphasized extreme simplification of form and color	a group of artists who agree on general principles