Dictionary.com
definitions
  • synonyms

brightline

or bright-line

[brahyt-lahyn]
See more synonyms for brightline on Thesaurus.com
adjective
  1. (of rules, standards, etc.) unambiguously clear: This muddies the waters of what should be a brightline rule.
Show More
noun
  1. Physical Chemistry. brightline spectrum.
Show More

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 Century

    Agnes M. (Agnes Mary) Clerke

  • Possibly all such stars have passed through a bright-line stage; but further evidence on the point is needed.