What does "teasel" mean?

Teasel: A bur of this plant.

Additional senses

  1. 2.Any contrivance intended as a substitute for teasels in dressing cloth. Teasel frame, a frame or set of iron bars in which teasel heads are fixed for raising the nap on woolen cloth.
  2. 3.To subject, as woolen cloth, to the action of teasels, or any substitute for them which has an effect to raise a nap.

Sources