Source : Webster's Revised Unabridged Dictionary (1913)

Agglutinate \Ag*glu"ti*nate\, a.
   1. United with glue or as with glue; cemented together.

   2. (physiol.) Consisting of root words combined but not
      materially altered as to form or meaning; as, agglutinate
      forms, languages, etc. See {Agglutination}, 2.

Agglutinate \Ag*glu"ti*nate\, v. t. [imp. & p. p.
   {Agglutinated}; p. pr. & vb. n. {Agglutinating}.] [L.
   agglutinatus, p. p. of agglutinare to glue or cement to a
   thing; ad + glutinare to glue; gluten glue. See {Glue}.]
   To unite, or cause to adhere, as with glue or other viscous
   substance; to unite by causing an adhesion of substances.

Source : WordNet®

agglutinate
     adj : united as if by glue [syn: {agglutinative}]
     v 1: string together (morphemes in an agglutinating language)
     2: clump together; as of bacteria, red blood cells, etc.