lu·​na·​tion | \lü-ˈnā-shən \

Definition of lunation 

: the period of time averaging 29 days, 12 hours, 44 minutes, and 2.8 seconds elapsing between two successive new moons

Examples of lunation in a Sentence

Recent Examples on the Web

This lunation occurs in Libra, and its energy activates the area of your chart associated with health and wellness. Aliza Kelly Faragher, Allure, "What October's Taurus Horoscope Means for You," 30 Sep. 2018 Finally, July concludes with a full moon in Aquarius on Friday, July 27 — but this isn't a typical lunation, either. Aliza Kelly Faragher, Allure, "What Your Sign's July 2018 Horoscope Predictions Mean for You," 29 June 2018 This vivid lunation shines a light on your extended community, encouraging you to take a more detailed look at your distant network. Aliza Kelly Faragher, Allure, "What June's Pisces Horoscope Means for You," 29 May 2018 This powerful lunation illuminates the area of your chart associated with career aspirations and public success, so expect major professional shifts mid-month. Aliza Kelly Faragher, Allure, "What July's Libra Horoscope Means for You," 29 June 2018 New moons correspond with beginnings, so lean into this lunation by starting a new chapter. Aliza Kelly Faragher, Allure, "What June's Aquarius Horoscope Means for You," 29 May 2018 New moons are a great time for planning, so use this lunation to outline your next moves. Aliza Kelly Faragher, Allure, "What April's Gemini Horoscope Means for You," 29 Mar. 2018 Power Moves: With the Full Moon dancing into your zone of passionate play, this is a return to innocence lunation for you, Gemstone. Bess Matassa, Teen Vogue, "Weekly Horoscopes March 26-April 1," 5 Apr. 2018 In Pisces, your psychic abilities are amplified, so don't be surprised when this lunation triggers clairvoyance. Aliza Kelly Faragher, Allure, "What March's Aries Horoscope Means for You," 28 Feb. 2018

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

14th century, in the meaning defined above

History and Etymology for lunation

Middle English lunacioun, from Anglo-French lunaison, from Medieval Latin lunation-, lunatio, from Latin luna

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Dictionary Entries near lunation



lunatic fringe




lunch box

Statistics for lunation

Last Updated

19 Nov 2018

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Time Traveler for lunation

The first known use of lunation was in the 14th century

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Rhyming Dictionary: Words that rhyme with lunation

Comments on lunation

What made you want to look up lunation? Please tell us where you read or heard it (including the quote, if possible).


the figure or shape of a crescent moon

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