roughness
/ˈɹʌf.nəs/ noun C2- The property of being rough, coarseness. · The roughness of the road made me wonder if my car would fall apart.
- Something that is rough; a rough spot.
- Roughage; coarse fodder.
- A measure of how rough something is, such as a surface · The surface roughness was low.
Plural roughnesses
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