quantize vs quantization

quantize is not a noun while quantization is a noun.

Word	Noun	Adjective	Verb	Adverb
quantize	No	No	Yes	No
quantization	Yes	No	No	No

quantize (noun)	quantization (noun)
	the act of dividing into quanta or expressing in terms of quantum theory

quantize (verb)	quantization (verb)
apply quantum theory to; restrict the number of possible values of (a quantity) or states of (a physical entity or system) so that certain variables can assume only certain discrete magnitudes that are integral multiples of a common factor
approximate (a signal varying continuously in amplitude) by one whose amplitude is restricted to a prescribed set of discrete values