Perspicuity /(pẽr`spĭ*kū"ĭ*ty̆)/

Per·spi·cu·i·ty

Perspicuity

n.
  1. The quality or state of being transparent or translucent. [Obs.]
  2. The quality of being perspicuous to the understanding; clearness of expression or thought.
  3. Sagacity; perspicacity.