Source : Webster's Revised Unabridged Dictionary (1913)

Palpability \Pal`pa*bil"i*ty\, n.
   The quality of being palpable, or perceptible by the touch.
   --Arbuthnot.

Source : WordNet®

palpability
     n : the quality of being perceivable by touch [syn: {tangibility},
          {tangibleness}] [ant: {intangibility}, {intangibility}]