cre·​pus·​cu·​lar | \kri-ˈpə-skyə-lər \

Definition of crepuscular 

1 : of, relating to, or resembling twilight : dim crepuscular light the crepuscular sky

2 : occurring or active during twilight crepuscular insects crepuscular activity crepuscular birds

Examples of crepuscular in a Sentence

Recent Examples on the Web

The crepuscular lighting was a prelude to Pugh’s raucous after-party in the same venue later that night. Hamish Bowles, Vogue, "Gareth Pugh Brings Back Vogueing in Grand Style," 16 Sep. 2018 Image The lighting, uncredited, is crepuscular, outlining the strange forms that slither, shiver and creep in from the wings. Alexis Soloski, New York Times, "Review: Mummenschanz Offers Wonder, and a Grumpy Trash Bag," 10 July 2018 Imagine Washington of the late 19th century, a time when crepuscular night often turned corpuscular. John Kelly, Washington Post, "There will be blood: Some District neighborhoods once sported memorable names," 19 June 2018 Tour by van into sections of the forest where crepuscular and nocturnal creatures are most active. The Courier-Journal, "75+ fun things, including Halloween creeps, for week of Sept. 21-27," 20 Sep. 2017 Lighting by Michael Boll is penitentiary bright by day and crepuscular at night. Andrea Simakis,, "Ayad Akhtar's hostage drama 'The Invisible Hand' at Cleveland Play House: There will be blood, on all sides (review)," 28 Feb. 2018 The animals are crepuscular, tending to be most active at dawn and dusk as well as after dark. Paul A. Smith, Milwaukee Journal Sentinel, "Smith: Bobcats a Wisconsin wildlife success story," 27 Sep. 2017 In fact, all versions of the game include a variety of visual toggles, including Sun flares, heat hazes, screen dirt, and crepuscular rays. Jonathan M. Gitlin, Ars Technica, "Project Cars 2 reviewed: It’s good, but don’t expect it to be easy," 21 Sep. 2017 This is only further emphasized when environmental lighting effects explode on your fighters' edges, whether thanks to bursts of crepuscular rays from behind or direct illumination from torches, neon lights, and other bright level elements. Sam Machkovech, Ars Technica, "Nidhogg 2 review: Violent, disgusting, and hilariously fun," 19 Aug. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'crepuscular.' 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 crepuscular

1668, in the meaning defined at sense 1

History and Etymology for crepuscular

borrowed from New Latin crepusculāris, from Latin crepusculum "twilight" + -āris -ar — more at crepuscule

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Last Updated

13 Nov 2018

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The first known use of crepuscular was in 1668

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cre·​pus·​cu·​lar | \kri-ˈpəs-kyə-lər \

Medical Definition of crepuscular 

1 : of, relating to, or resembling twilight crepuscular depths of personality— William James

2 : active in the twilight crepuscular animals

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