slub

Noun

Synonyms: knot burl

WordNet 3.0

soft lump or unevenness in a yarn; either an imperfection or created by designSynonyms: knot burl

Slub \Slub\, n. [Etymol. uncertain.] A roll of wool slightly twisted; a rove; -- called also slubbing. [1913 Webster]

Slub \Slub\, v. t. [imp. & p. p. Slubbed; p. pr. & vb. n. Slubbing.] To draw out and twist slightly; -- said of slivers of wool. [1913 Webster]