thickness /ˈθɪknəs/noun 6verb 1forms 3 noun6 •The property of being thick (in dimension). •A measure of how thick (in dimension) something is.The thickness of the Earth's crust varies from two to 70 kilometres.Guitar picks come in different thicknesses. •The quality of being thick (in consistency).Whip the cream until it reaches a good thickness. •A layer.We upholstered the seat with three thicknesses of cloth to make it more comfortable to sit on. •(informal) The property of being thick (slow to understand). •The minimum number of planar subgraphs which a given graph can decompose into. verb1 •To trim (wood) to a consistent thickness using a thickness planer.Even if the parts are thicknessed by machine, check for and plane out any cup with a bench plane. — 2003 formsthicknessed · thicknessing · thicknesses