The Collaborative International Dictionary of English v.0.48:

phagocyte \phag"o*cyte\ (f[a^]g"[-o]*s[imac]t), n. [Gr. fagei^n
   to eat + ky`tos a hollow vessel.] (Physiol.)
   A leucocyte which plays a part in immunity and retrogressive
   processes by taking up (eating), in the form of fine
   granules, foreign objects such as bacteria or cellular parts
   to be removed. There are two principle subtypes, (1)
   microphages, polymorphonuclear lymphocytes which
   principally digest bacteria; and (2) macrophages,
   mononucleated cells which primarily scavenge dead tissue and
   degenerate cells. --Stedman.
   [1913 Webster + PJC]