1. [v]  stick together; as of the edges of a wound
2. [v]  cause to adhere; "The wounds were coapted"

CONGLUTINATE is a 12 letter word that starts with C.

1. \Con*glu"ti*nate\, a. [L. conglutinatus, p. p. of
   conglutinare to glue; con- + glutinare to glue, gluten glue.]
   Glued together; united, as by some adhesive substance.
   
   

2. \Con*glu"ti*nate\, v. t. [imp. & p. p.
   {Conglutinated}; p. pr. & vb. n. Conglutinating.]
   To glue together; to unite by some glutinous or tenacious
   substance; to cause to adhere or to grow together.
   
         Bones . . . have had their broken parts conglutinated
         within three or four days.               --Boyle.
   
   

3. \Con*glu"ti*nate\, v. i.
   To unite by the intervention of some glutinous substance; to
   coalesce.