1 luminosities | Definition of luminosities

luminosity

noun
lu·​mi·​nos·​i·​ty | \ ËŒlü-mÉ™-ˈnä-sÉ™-tÄ“ How to pronounce luminosity (audio) \
plural luminosities

Definition of luminosity

1a : the quality or state of being luminous
b : something luminous
2a : the relative quantity of light
b : relative brightness of something
3 : the relative quantity of radiation emitted by a celestial source (such as a star)

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Examples of luminosity in a Sentence

the luminosity of the fireflies made for an enchanting nighttime show

Recent Examples on the Web

The ensuing project included restoration of the building’s woodwork and plaster ornamentation, plus installation of LED lights above the big central skylight, creating luminosity without the high expense of a full restoration. Steven Litt, cleveland.com, "Cleveland Public Library to kick off 10-year, $100M project to improve 27 neighborhood branches," 25 Aug. 2019 Cowrie shells acted as a supremely shakable crown, as demonstrated by artist Oroma Elewa, whose flawless complexion afforded the already radiant share a wash of excess luminosity. Calin Van Paris, Vogue, "The Best Beauty Instagrams of the Week: Karlie Kloss, Zoë Kravitz, and More," 29 July 2018 The line claims to increase luminosity and firmness without the risk of irritation associated with retinoids and glycolic acids. Emily Dudding, Harper's BAZAAR, "Copper: The New Skin Saver," 13 Mar. 2014 It is dispensed from a handsome translucent package with a blood-orange luminosity. Charles Graeber, WIRED, "How Scientists Built a ‘Living Drug’ to Beat Cancer," 25 July 2019 The sweetness of the upper strings and the luminosity of the orchestra’s corporate sound cast Wagner’s writing in its best possible light, as did acting principal horn Daniel Gingrich’s offstage solo. Howard Reich, chicagotribune.com, "CSO review: A rousing debut by conductor Simone Young," 7 June 2019 Complicating matters, the instances of luminosity around earthquakes don't all look the same, sparking theories that range from plain old lightning to UFOs and otherworldly apparitions. Christina Nunez, National Geographic, "Earthquake lights, explained," 16 Apr. 2019 These pulsate in a rhythm that depends on their intrinsic luminosity. Corey S. Powell, Discover Magazine, "Why We Still Don't Know How Fast the Universe is Expanding," 1 Jan. 2019 For for a lighter feel, pick up Olay's latest featherweight texture that's designed to restore skin's luminosity and minimize pore size all with a breathable finish. Jenna Rennert, Vogue, "5 Ways To Cheat Your Skin Into Thinking It's Already Spring," 28 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'luminosity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of luminosity

1634, in the meaning defined at sense 1a

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More Definitions for luminosity

luminosity

noun
lu·​mi·​nos·​i·​ty | \ ËŒlü-mÉ™-ˈnäs-É™t-Ä“ How to pronounce luminosity (audio) \
plural luminosities

Medical Definition of luminosity

1 : the quality or state of being luminous
2a : the relative quantity of light
b : the comparative degree to which light of a given wavelength induces the sensation of brightness when perceived

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