Oxford Advanced American Dictionary

Definition of thickness noun from the Oxford Advanced Learner's Dictionary

 Oxford3000

thickness

noun
thickness pronunciation English ˈθɪknəs thickness pronunciation American ˈθɪknəs
 
1 [uncountable, countable] the size of something between opposite surfaces or sides
Synonym
widthUse wood of at least 12 mm thickness.Cook for about 10 minutes, depending on the thickness of the steaks.Roll out the pastry to a thickness of 1 cm.The walls are at least two feet in thickness.The board is available in four thicknesses.2 [countable] thickness (of something) a layer of somethingThe jacket was lined with a double thickness (= two layers) of fabric.