1. [n]  cement consisting of a sticky substance that is used as an adhesive
2. [v]  be fixed as if by glue; "His eyes were glued on her"
3. [v]  join or attach with or as if with glue; "paste the sign ont the wall"; "cut and paste the sentence in the text"

1. \Glue\, n. [F. glu, L. glus, akin to gluten, from gluere to
   draw together. Cf. {Gluten}.]
   A hard brittle brownish gelatin, obtained by boiling to a
   jelly the skins, hoofs, etc., of animals. When gently heated
   with water, it becomes viscid and tenaceous, and is used as a
   cement for uniting substances. The name is also given to
   other adhesive or viscous substances.
   
   {Bee glue}. See under {Bee}.
   
   {Fish glue}, a strong kind of glue obtained from fish skins
      and bladders; isinglass.
   
   {Glue plant} (Bot.), a fucoid seaweed ({Gloiopeltis tenax}).
   
   
   {Liquid glue}, a fluid preparation of glue and acetic acid
      oralcohol.
   
   {Marine glue}, a solution of caoutchouc in naphtha, with
      shellac, used in shipbuilding.
   
   

2. \Glue\, v. t. [imp. & p. p. {Glued}; p. pr. & vb. n.
   {Gluing}.] [F. gluer. See {Glue}, n.]
   To join with glue or a viscous substance; to cause to stick
   or hold fast, as if with glue; to fix or fasten.
   
         This cold, congealed blood That glues my lips, and will
         not let me speak.                        --Shak.
   
   

A generic term for any interface logic or protocol that connects two component blocks. For example, blue glue is IBM's SNA protocol, and hardware designers call anything used to connect large VLSI's or circuit blocks "glue logic".

[jargon file]