gray body

American  

noun

Physics.

1. any body that emits radiation at each wavelength in a constant ratio less than unity to that emitted by a black body at the same temperature.

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Example Sentences

See Examples For:

gray body

The unmanned aircraft, nearly six feet long with a cone-shaped nose and a shiny gray body, had all the external characteristics of a Russian military drone.

From Washington Post ● Feb. 11, 2022

The fly is a little bigger than a common housefly, with orange eyes and a metallic dark blue or gray body with three dark stripes down its back.

From New York Times ● Nov. 25, 2016

Partly because the matte gray body with blue accents looks like it maybe fell from a spaceship or was lifted from the set of Battlestar Galactica.

From The Verge ● Jul. 30, 2014

Tourists and locals alike struck poses for cameras in front of the gray body of water that looked more like a large lake than a river, surrounded by some of the city’s most famous landmarks.

From New York Times ● Jun. 10, 2013

There was a soft paw on my lap, then a gray body.

From "Sarah, Plain and Tall" by Patricia MacLachlan