1. (Fibre manufacture) A driven roller, which may be heated, around which yarn is passed in order to regulate its speed during the extrusion and further processing of certain manufactured fibres. Note: Godets usually have a single flange and are mounted on an axle from the flange side. They may be constructed with serrations broadly parallel to the axis, and may be tapered or stepped. 2. (Clothing) Material cut in a wedge-shaped segment of a circle and let into a seam or slash to give decorative extra fullness to a hem.