Slub

• POS: Adjective, Noun, Verb (usu participle), Verb (transitive)

CIDE DICTIONARY

Slub, n. [Etymol. uncertain.].

 A roll of wool slightly twisted; a rove; -- called also slubbing.  [1913 Webster]

Slub, v. t. 

 To draw out and twist slightly; -- said of slivers of wool.  [1913 Webster]

OXFORD DICTIONARY

Slub, n. & adj.
--n.
1 a lump or thick place in yarn or thread.
2 fabric woven from thread etc. with slubs.
--adj. (of material etc.) with an irregular appearance caused by uneven thickness of the warp.

Slub, n. & v.
--n. wool slightly twisted in preparation for spinning.
--v.tr. (slubbed, slubbing) twist (wool) in this way.

Etymology

18th c.: orig. unkn.