slub

To draw out and twist (a strand of silk or other textile fiber) in preparation for spinning.

A soft thick nub in yarn that is either an imperfection or purposely set for a desired effect.

A slightly twisted roll of fiber, as of silk or cotton.

Loose mud; mire.

Wool slightly twisted preparatory to spinning, usually that which has been carded.

To twist slightly after carding, so as to prepare for spinning: said of woolen yarn.

A lump or thick piece of cotton which becomes attached to or twisted into the yarn during the process of spinning.

A roll of wool slightly twisted; a rove; — called also slubbing.

To draw out and twist slightly; — said of slivers of wool.

A small thickened portion or knot found on linen yarn, caused by defects.