brightline
or bright-line
[brahyt-lahyn]
- (of rules, standards, etc.) unambiguously clear: This muddies the waters of what should be a brightline rule.
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- Physical Chemistry. brightline spectrum.
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Origin of brightline
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for bright-line
Historical Examples
But monochromatic or "bright-line" light is, by its nature, incapable of being so diffused.
A Popular History of Astronomy During the Nineteenth CenturyAgnes M. (Agnes Mary) Clerke
Possibly all such stars have passed through a bright-line stage; but further evidence on the point is needed.
A Popular History of Astronomy During the Nineteenth CenturyAgnes M. (Agnes Mary) Clerke