• Thickness

    Origin

    From Middle English thiknesse, from Old English þicnes ("thickness, viscosity, density, hardness; obscurity, cloud, darkness; thicket; depth, a thick body, anything thick or heavy"), equivalent to thick + -ness.

    Full definition of thickness

    Noun

    thickness

    (countable and uncountable; plural thicknesss)
    1. (uncountable) The property of being thick (in dimension).
    2. (uncountable) A measure of how thick (in dimension) something is.The thickness of the Earth's crust is varies from two to 70 kilometres.
    3. (countable) A layer.We upholstered the seat with three thicknesses of cloth to make it more comfortable to sit on.
    4. (uncountable) The quality of being thick (in consistency).Whip the cream until it reaches a good thickness.
    5. (uncountable, informal) The property of being thick (slow to understand).

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