Teasel

1.

A plant of the genus Dipsacus, of which one species (D. fullonum) bears a large flower head covered with stiff, prickly, hooked bracts. This flower head, when dried, is used for raising a nap on woolen cloth.

2.

A bur of this plant.

3.

Any contrivance intended as a substitute for teasels in dressing cloth.

1.

(TRANSITIVE) To subject, as woolen cloth, to the action of teasels, or any substitute for them which has an effect to raise a nap.