[1] : The Collaborative International Dictionary of English v.0.48

plasticity \plastic"ity\, n. cf. f. plasticit'e.
   1. the quality or state of being plastic.
      1913 webster

   2. physiol. plastic force. --dunglison.
      1913 webster plastid

[2] : WordNet (r) 2.0

plasticity
     n : the property of being physically malleable; the property of
         something that can be worked or hammered or shaped under
         pressure without breaking syn: malleability ant: unmalleability
see also:
malleability unmalleability 

[3] : Moby Thesaurus II by Grady Ward, 1.0

75 moby thesaurus words for "plasticity":
   adaptability, adjustability, agreeability, agreeableness,
   alterability, amenability, aptitude, aptness, bendability,
   biddability, brightness, changeability, changeableness,
   changefulness, cleverness, compliableness, docility, ductibility,
   ductility, educability, elasticity, extendibility, extensibility,
   facility, fictility, flexibility, flexility, flexuousness,
   fluidity, formativeness, give, impermanence, impressionability,
   intelligence, limberness, litheness, malleability, mobility,
   modifiability, moldability, motivation, movability, mutability,
   nonuniformity, permutability, pliability, pliancy, quickness,
   readiness, receptiveness, receptivity, resilience, responsiveness,
   rubberiness, sensibility, sensitiveness, sequacity, servility,
   springiness, submissiveness, subservience, suppleness,
   susceptibility, teachability, teachableness, tensileness,
   tensility, tractability, tractility, trainableness, transience,
   transitoriness, willingness, willowiness, yieldingness

Plasticity >> P Words
Plasticity, definition of term: Plasticity
plasticity_pag1.html