Angle of draught, the angle made with the plane over which a body is drawn by the line in which the pulling force acts, when the latter has the direction best adapted to overcome the obstacles of friction and the weight of the body. - - Black draught. See under Black, a. -- Blast draught, or Forced draught, the draught produced by a blower, as by blowing in air beneath a fire or drawing out the gases from above it. -- Natural draught, the draught produced by the atmosphere flowing, by its own weight, into a chimney wherein the air is rarefied by heat. -- On draught, so as to be drawn from the wood (as a cask, barrel, etc.) in distinction from being bottled; as, ale on draught. -- Sheer draught. See under Sheer.
Draught, a. 1. Used for drawing vehicles, loads, etc.; as, a draught beast; draught hooks.