ROUGHNESS Meaning and
Definition
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Roughness is a physical quality characterized by an uneven and jagged surface or texture. It refers to the degree of coarseness or ruggedness exhibited by an object or a material. When an item is rough, it means that its surface is not smooth and can potentially cause discomfort or abrasions upon contact with other objects or skin.
In the realm of materials science, roughness is measured by the irregularities present on a surface, such as bumps, ridges, or grooves. These irregularities can vary in size, shape, and orientation, resulting in different degrees of roughness. Geological formations like mountains, rock cliffs, or even the surface of the moon can be described as having a rough texture due to their sharp and uneven contours.
In the context of mechanics and engineering, roughness becomes an essential factor as it can influence various properties of a surface, including friction, adhesion, and wear. For instance, in manufacturing processes, the roughness of a mechanical component or part can affect its functionality and performance. A smoother surface generally reduces friction, whereas a rougher surface can provide better adhesion and grip.
Beyond the physical aspect, roughness can also convey an idea or impression of a person or an object being harsh, unpolished, or lacking refinement. It can describe the texture of someone's voice, the demeanor of an individual, or even the quality of a written piece.
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The quality or state of being rough; unevenness; harshness; asperity; rouggedness of temper; coarseness of manners.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
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Etymology of ROUGHNESS
The word "roughness" can be traced back to the Middle English word "rouw" or "rowe", meaning coarse or harsh. This Middle English term has its roots in the Old English word "ruh", which also conveys the idea of rough or coarse. The Old English term finds its origins in Proto-Germanic "rukhwaz" and further connects to the Proto-Indo-European root "*reug-", which denotes rough or bristly. Over time, the word "rouw" transformed into "rough" in English, and "roughness" emerged as a derivative around the 14th century to describe the quality or state of being rough.
Similar spelling words for ROUGHNESS
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