limpidity

from WordNet (r) 3.0 (2006)

limpidity
    n 1: free from obscurity and easy to understand; the
         comprehensibility of clear expression [syn: {clarity},
         {lucidity}, {lucidness}, {pellucidity}, {clearness},
         {limpidity}] [ant: {abstruseness}, {obscureness},
         {obscurity}, {reconditeness}, {unclearness}]
    2: passing light without diffusion or distortion [syn:
       {pellucidness}, {pellucidity}, {limpidity}]

from The Collaborative International Dictionary of English v.0.48

Limpidity \Lim*pid"i*ty\ (l[i^]m*p[i^]d"[i^]*t[y^]), n. [L.
   limpiditas: cf. F. limpidit['e].]
   The quality or state of being limpid.
   [1913 Webster]