The Collaborative International Dictionary of English v.0.48:

Draintile \Drain"tile`\, n.
   A hollow tile used in making drains; -- called also draining
   tile.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Draining \Drain"ing\, vb. n. of Drain, v. t. (Agric.)
   The art of carrying off surplus water, as from land.
   [1913 Webster]

   Draining tile. Same as Draintile.
      [1913 Webster]