refractive vs refract

refractive is an adjective but refract is not an adjective.

Word	Noun	Adjective	Verb	Adverb
refractive	No	Yes	No	No
refract	No	No	Yes	No

refractive (adjective)	refract (adjective)
of or relating to or capable of refraction
capable of changing the direction (of a light or sound wave)

refractive (verb)	refract (verb)
	determine the refracting power of (a lens)
	subject to refraction