Definition of Heat ray
1. Noun. A ray that produces a thermal effect.
Specialized synonyms: Infrared Ray
Heat Ray Pictures
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Lexicographical Neighbors of Heat Ray
Literary usage of Heat ray
Below you will find example usage of this term as found in modern and/or classical literature:
1. The Encyclopedia Americana: A Library of Universal Knowledge (1919)
"Writers sometimes speak even of the "color" of a heat ray to indicate its wave length or period. Conversely, every light ray is simultaneously a heat ray. ..."
2. An Introduction to the Study of Social Evolution: The Prehistoric Period by Francis Stuart Chapin (1913)
"If we distinguish In the sun's rays the heat ray, the light ray and the actinic ray we find that while the heat ray and the actinic ray do not seem to be ..."
3. The British Journal of Photographyby Liverpool Photographic Society by Liverpool Photographic Society (1874)
"After much research he discovered that the injury came from the chemical ray, and not from the heat ray. He was guided to this by observing the fact that a ..."
4. Principles of Chemistry: Embracing the Most Recent Discoveries in the by John Addison Porter (1867)
"Thus a piece of smoked rock salt allows the blue heat ray of the spectrum to pass, while alum lets the lower or red heat ray pass. 107. ANALYSIS OF HEAT. ..."