What is "tile drain"

Tile \Tile\, n. [OE. tile, tigel, AS. tigel, tigol, fr. L. tegula, from tegere to cover. See Thatch, and cf. Tegular.]

1. A plate, or thin piece, of baked clay, used for covering the roofs of buildings, for floors, for drains, and often for ornamental mantel works.

2. (Arch.)

   1. A small slab of marble or other material used for flooring.

   2. A plate of metal used for roofing.

3. (Metal.) A small, flat piece of dried earth or earthenware, used to cover vessels in which metals are fused.

4. A draintile.

5. A stiff hat. [Colloq.]
   --Dickens.

   Tile drain, a drain made of tiles.

   Tile earth, a species of strong, clayey earth; stiff and stubborn land. [Prov. Eng.]

   Tile kiln, a kiln in which tiles are burnt; a tilery.

   Tile ore (Min.), an earthy variety of cuprite.

   Tile red, light red like the color of tiles or bricks.

   Tile tea, a kind of hard, flat brick tea. See Brick tea, under Brick.