Simple Definition of thickness
: the distance between the top and bottom or front and back surfaces of something : a measurement of how thick something is
: the quality of being thick
: a layer or sheet of some material
Full Definition of thickness
1 : the smallest of three dimensions <length, width, and thickness>
2 : the quality or state of being thick
3a : viscous consistency <boiled to the thickness of honey>b : the condition of being smoky, foul, or foggy
4 : the thick part of something
Examples of thickness
The plank measures two inches in thickness.
the length, circumference, and thickness of the log
Plywood is available in various thicknesses.
Cooking time will vary depending on the thickness of the steak.
I added flour to increase the gravy's thickness.
I was surprised by the thickness of his accent.
Before 12th Century
First Known Use of thickness
before 12th century
THICKNESS Defined for Kids
Definition of thickness
1 : the quality or state of being thick
2 : the smallest of three dimensions <length, width, and thickness>
Seen and Heard
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