viscosity index
noun
: an arbitrary number assigned as a measure of the constancy of the viscosity of a lubricating oil with change of temperature with higher numbers indicating viscosities that change little with temperature
Examples of viscosity index in a Sentence
Recent Examples on the Web
An oil’s resistance to thinning in hotter temperatures is called the viscosity index.
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Paul Weissler, Popular Mechanics, 31 Aug. 2020
Resistance to thinning with increasing temperature is called viscosity index.
—Paul Weissler, Popular Mechanics, 14 Feb. 2019
Paul Weissler, Popular Mechanics, 31 Aug. 2020
Resistance to thinning with increasing temperature is called viscosity index.
—Paul Weissler, Popular Mechanics, 14 Feb. 2019
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'viscosity index.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Viscosity index.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/viscosity%20index. Accessed 25 Apr. 2024.
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