The Collaborative International Dictionary of English v.0.48:

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.
   [1913 Webster]