sentiency

from WordNet (r) 3.0 (2006)

sentiency
    n 1: the faculty through which the external world is
         apprehended; "in the dark he had to depend on touch and on
         his senses of smell and hearing" [syn: {sense},
         {sensation}, {sentience}, {sentiency}, {sensory faculty}]

from The Collaborative International Dictionary of English v.0.48

Sentience \Sen"ti*ence\, Sentiency \Sen"ti*en*cy\, n. [See
   {Sentient}, {Sentence}.]
   The quality or state of being sentient; esp., the quality or
   state of having sensation. --G. H. Lewes.
   [1913 Webster]

         An example of harmonious action between the
         intelligence and the sentiency of the mind. --Earle.
   [1913 Webster]