: the reflective quality or power of a surface or material
… conducting "reflectivity tests" to see whether Saudi sand when viewed through the goggles creates a sparkling effect that disorients pilots and causes them to send their helicopters careening to the ground.Newsweek
… there are many examples of luster-decorated ceramics, in which Islamic potters emulated the reflectivity of metalwork by applying metal oxides to white-glazed vessels …Roberta Smith
The warming at the surface could be expected to melt snow and ice, reducing the earth's albedo, or reflectivity.Roger Revelle

Examples of reflectivity in a Sentence

Recent Examples on the Web
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While Dolby assures that the same tuning can be applied to LCDs, the experience may still depend on factors like display size, reflectivity, and the number of screens in the car. Prakhar Khanna, Forbes, 8 Jan. 2025 For example, melting ice from global warming reduces the Earth’s reflectivity as temperatures rise. Hayleigh Evans, The Arizona Republic, 19 Dec. 2024 The new research is based on an analysis of climate models and NASA satellite data about the Earth’s reflectivity. Evan Bush, NBC News, 5 Dec. 2024 Researchers tested seven particles as potential atmospheric aerosols and ranked their suitability based on their heat absorption, reactivity and reflectivity. Devika Rao, theweek, 12 Nov. 2024 See all Example Sentences for reflectivity 

Word History

First Known Use

1879, in the meaning defined above

Time Traveler
The first known use of reflectivity was in 1879

Dictionary Entries Near reflectivity

Cite this Entry

“Reflectivity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reflectivity. Accessed 18 Jan. 2025.

Last Updated: - Updated example sentences
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