color vision deficiency vs color blindness

color vision deficiency and color blindness both are nouns.

Word	Noun	Adjective	Verb	Adverb
color vision deficiency	Yes	No	No	No
color blindness	Yes	No	No	No

As nouns, color vision deficiency and color blindness are synonyms defined as:

color vision deficiency and color blindness: genetic inability to distinguish differences in hue

Other synonyms of color vision deficiency include colour blindness, colour vision deficiency.

color vision deficiency (noun)	color blindness (noun)
genetic inability to distinguish differences in hue	genetic inability to distinguish differences in hue