Source : Webster's Revised Unabridged Dictionary (1913)

Viscidity \Vis*cid"i*ty\, n. [Cf. F. viscidit['e].]
   The quality or state of being viscid; also, that which is
   viscid; glutinous concretion; stickiness.

Source : WordNet®

viscidity
     n : the property of being cohesive and sticky [syn: {cohesiveness},
          {glueyness}, {gluiness}, {gumminess}, {ropiness}, {viscidness}]