Source : Webster's Revised Unabridged Dictionary (1913)

Tangible \Tan"gi*ble\, a. [L. tangibilis, fr. tangere to touch:
   cf. F. tangible. See {Tangent}.]
   1. Perceptible to the touch; tactile; palpable. --Bacon.

   2. Capable of being possessed or realized; readily
      apprehensible by the mind; real; substantial; evident. ``A
      tangible blunder.'' --Byron.

            Direct and tangible benefit to ourselves and others.
                                                  --Southey.
      -- {Tan"gi*ble*ness}, n. -- {Tan"gi*bly}, adv.

Source : WordNet®

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