Source : Webster's Revised Unabridged Dictionary (1913)

Reflexibility \Re*flex`i*bil"i*ty\ (r?*fl?ks`?*b?l"?*t?), n.
   [Cf. F. r['e]flexibilit['e].]
   The quality or capability of being reflexible; as, the
   reflexibility of the rays of light. --Sir I. Newton.