diurnal 1 of 2

adjective

dī-ˈər-nᵊl How to pronounce diurnal (audio)
Definition of diurnalnext
as in daily
occurring, done, produced, or appearing every day a love as constant and certain as the diurnal tides

Synonyms & Similar Words

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Antonyms & Near Antonyms

diurnal

2 of 2

noun

as in periodical
a publication that appears at regular intervals a collection of diurnals containing essays by preeminent 19th-century American writers and thinkers

Synonyms & Similar Words

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of diurnal
Adjective
During its 12-day journey, SE2 completed one full day-night diurnal cycle over New Mexico and three consecutive diurnals off the Brazilian coast. — Chris Young, Interesting Engineering, 14 Apr. 2026 Overnight lows will drop into the low 40s under clear skies, marking a 30-degree diurnal swing in some spots. — Senior Newsroom Meteorologist, San Francisco Chronicle, 3 Feb. 2026 This doubling of the diurnal might happen once a year. — Lauren Bostwick, CBS News, 18 Jan. 2026 The watery and stable microclimate within the caves long ago could have hosted microbial colonies, and today the caves are protected from the extreme conditions on Mars' surface, such as wildly different diurnal temperatures, dust storms and solar ultraviolet and cosmic-ray radiation. — Keith Cooper, Space.com, 24 Nov. 2025 See All Example Sentences for diurnal
Recent Examples of Synonyms for diurnal
  1. daily
  2. periodical
  3. newspaper
  4. journal
  5. book
  6. magazine
Adjective
  • Hydrolyzed keratin, meanwhile, fills in the gaps in the cuticle by improving elasticity and damage caused by daily styling, heat, and environmental stressors.
    — Madison San Miguel, Allure, 5 Sep. 2026
  • In Kyiv, the recurring wail of air-raid sirens has become part of daily life.
    — ABC News, ABC News, 4 Sep. 2026
Definition of daily
Noun
  • People who might be lucky to have a roof over their heads gathered there to read American books and periodicals, watch American movies, listen to lectures about America, tap their toes to jazz from America.
    — Ian Buruma, New Yorker, 10 Aug. 2026
  • It is anticipated that all IEEE periodicals will be included in the Integrity Hub screening by the end of this year.
    — IEEE Spectrum, IEEE Spectrum, 30 July 2026
Definition of periodical
Noun
  • Local newspapers, foremost among them the New York Times, opened up their obituary pages to cover, in humanizing detail, the lives of ordinary people who died in the attacks.
    — Robert W. Snyder, New York Daily News, 6 Sep. 2026
  • The 12 defendants, including Khalifa, were sentenced to death by hanging and fined 500,000 Egyptian pounds ($9,800) by Cairo’s Criminal Court, the al-Ahram newspaper reported.
    — Eyad Kourdi, CNN Money, 6 Sep. 2026
Definition of newspaper
Noun
  • The results, published this year in the ‘Medicine and Science in Sports and Exercise’ journal, ranked a suit blower running cold air first and a cold-air helmet blower second.
    — Patrick Iversen, New York Times, 6 Sep. 2026
  • The study is published in the journal Applied Physics Letters.
    — Rupendra Brahambhatt, Interesting Engineering, 5 Sep. 2026
Definition of journal
Noun
  • In addition to Jim Murray’s anthology, here are some other sports books that have inspired Wickersham.
    — Aaron Reiss, Los Angeles Times, 5 Sep. 2026
  • In late July, HRW released a book-length report documenting the crimes committed in the first four months of the conflict.
    — Aryeh Neier, The New York Review of Books, 5 Sep. 2026
Definition of book
Noun
  • The Ballon d’Or, organised by the magazine France Football, has increasingly become a barometer of greatness.
    — Philip Buckingham, New York Times, 8 Sep. 2026
  • The magazine’s urbanity lay in the anti-urbanism of its singular voices.
    — Adam Gopnik, New Yorker, 7 Sep. 2026
Definition of magazine

Browse Nearby Words

ditzy
diurnal
diurnals
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Cite this Entry

“Diurnal.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/diurnal. Accessed 9 Sep. 2026.

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