Source : Webster's Revised Unabridged Dictionary (1913)

Percipient \Per*cip"i*ent\, a. [L. percipiens, -entis, p. pr. of
   percipere. See {Perceive}.]
   Having the faculty of perception; perceiving; as, a
   percipient being. --Bentley. -- n. One who, or that which, is
   percipient. --Glanvill.

Source : WordNet®

percipient
     adj : characterized by ease and quickness in perceiving; "clear
           mind"; "a percipient author" [syn: {clear}]