Source : Webster's Revised Unabridged Dictionary (1913)

Monomorphic \Mon`o*mor"phic\, Monomorphous \Mon`o*mor"phous\, a.
   [Mono- + Gr. ? form.] (Biol.)
   Having but a single form; retaining the same form throughout
   the various stages of development; of the same or of an
   essentially similar type of structure; -- opposed to
   {dimorphic}, {trimorphic}, and {polymorphic}.