slub /slʌb/noun 2verb 1forms 3 noun2 •A small thickened portion or knot found in yarn, caused by defects or uneven spinning.The huge bolts of cloth had to be checked for imperfections such as slubs and misweaves. — 2014 •Fabric fiber produced by slubbing. verb1 •To draw and twist fibers in order to prepare them for spinning. formsslubbed · slubbing · slubs
