Batt – carded fiber that comes from a drum carder. It is like a sheet of fiber.
Bump – a ball of fiber that is prepared for spinning
Carding – a process by which the fiber is brushed, preparing it for spinning.
Drive – the string that connects to big wheel on a spinning wheel to the part that spins the yarn.
Drum Carder – a machine that is used to card fiber into a batt. It is particularly useful for blending fibers.
Fleece – fiber that has been shorn from a sheep.
Noils – Technically waste and knotted bits in wool. Noils of any fiber can be deliberately added to make a novelty or art yarn.
Roving – fiber that has not yet been spun, but has been washed and carded
Treadle – the foot-pedal on a spinng wheel