slub

Noun

 * 1)  A small thickened portion or knot found on linen yarn, caused by defects.
 * 2) Fabric fiber produced by slubbing.
 * 1) Fabric fiber produced by slubbing.

Verb

 * 1) To draw and twist fibers in order to prepare them for spinning.

Related terms

 * slubber
 * slubbing billy
 * slubbing billy