visibility vs perceptibility

visibility and perceptibility both are nouns.

Word	Noun	Adjective	Verb	Adverb
visibility	Yes	No	No	No
perceptibility	Yes	No	No	No

As nouns, perceptibility is a hypernym of visibility; that is, perceptibility is a word with a broader meaning than visibility:

visibility: quality or fact or degree of being visible; perceptible by the eye or obvious to the eye
perceptibility: the property of being perceptible by the mind or the senses

visibility (noun)	perceptibility (noun)
quality or fact or degree of being visible; perceptible by the eye or obvious to the eye	the property of being perceptible by the mind or the senses
capability of providing a clear unobstructed view
degree of exposure to public notice