Source : Webster's Revised Unabridged Dictionary (1913)

Congruent \Con"gru*ent\, a. [L. congruens, p. pr. of congruere:
   cf. F. congruent.]
   Possessing congruity; suitable; agreeing; corresponding.

         The congruent and harmonious fitting of parts in a
         sentence.                                --B. Jonson.

   {Congruent figures} (Geom.), concurring figures.

Source : WordNet®

congruent
     adj 1: corresponding in character or kind [syn: {congruous}] [ant:
            {incongruous}]
     2: coinciding when superimposed [ant: {incongruent}]