Blazar
noun
Examples
Word Origin
blazar
(blā’zär’)
An extremely bright, starlike object characterized by rapid changes in luminosity and a flat spectrum. Originally thought to be ordinary irregular variable stars, their spectral properties now lead astronomers to consider blazars as a class of active galactic nuclei. Blazars emit radiation over a very wide range of frequencies, from radio to gamma rays, with their jets pointed at the observer. This orientation accounts for their peculiar properties, specifically the variability and intensity of their brightness, and it also distinguishes blazars from another class of active galactic nucleus, quasars.
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- Blaze
a bright flame or fire: the welcome blaze of the hearth. a bright, hot gleam or glow: the blaze of day. a sparkling brightness: a blaze of jewels. a sudden, intense outburst, as of fire, passion, or fury: to unleash a blaze of pent-up emotions; a blaze of glory. blazes, Informal. hell: Go to blazes! […]
- Blaze--away
a bright flame or fire: the welcome blaze of the hearth. a bright, hot gleam or glow: the blaze of day. a sparkling brightness: a blaze of jewels. a sudden, intense outburst, as of fire, passion, or fury: to unleash a blaze of pent-up emotions; a blaze of glory. blazes, Informal. hell: Go to blazes! […]
- Blaze-a-trail
Find a new path or method; begin a new undertaking. For example, His research blazed a trail for new kinds of gene therapy. This expression was first used literally in the 18th century for the practice of marking a forest trail by making blazes, that is, marking trees with notches or chips in the bark. […]
- Blaze-orange
a very bright orange, as on a traffic cone.