Source : Webster's Revised Unabridged Dictionary (1913)

Presbyter \Pres"by*ter\, n. [L. an elder, fr. Gr. ?. See
   {Priest}.]
   1. An elder in the early Christian church. See 2d Citation
      under {Bishop}, n., 1.

   2. (Ch. of Eng. & Prot. Epis. Ch.) One ordained to the second
      order in the ministry; -- called also {priest}.

            I rather term the one sort presbyter than priest.
                                                  --Hooker.

            New presbyter is but old priest writ large.
                                                  --Milton.

   3. (Presbyterian Ch.) A member of a presbytery whether lay or
      clerical.

   4. A Presbyterian. [Obs.] --Hudibras.

Source : WordNet®

presbyter
     n : an elder in the Presbyterian Church