Glue \Glue\ (gl[=u]), 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.
   [1913 Webster]

   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 or
      alcohol.

   Marine glue, a solution of caoutchouc in naphtha, with
      shellac, used in shipbuilding.
      [1913 Webster]