'Perceptibility' definitions:

Definition of 'perceptibility'

From: WordNet
noun
The property of being perceptible by the mind or the senses [ant: imperceptibility]

Definition of 'Perceptibility'

From: GCIDE
  • Perceptibility \Per*cep`ti*bil"i*ty\, n. [Cf. F. perceptibilit['e].]
  • 1. The quality or state of being perceptible; as, the perceptibility of light or color. [1913 Webster]
  • 2. Perception. [R.] --Dr. H. More. [1913 Webster]