cyanometer

[ sahy-uh-nom-i-ter ]
/ ˌsaɪ əˈnɒm ɪ tər /

noun Optics.

an instrument for measuring the amount and intensity of blue in light, as of the sky.

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Origin of cyanometer

First recorded in 1820–30; cyano-1 + -meter
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for cyanometer

  • An instrument called a “cyanometer,” meaning “measurer of blue,” is used for ascertaining the intensity of color in the sky.