lunar eclipse


Definition of lunar eclipse

: an eclipse in which the full moon passes partially or wholly through the umbra of the earth's shadow

Examples of lunar eclipse in a Sentence

Recent Examples on the Web Early Monday morning, the moon entered what is called a penumbral lunar eclipse, when the moon moves into Earth's penumbra, or outer shadow. Ryan Prior, CNN, "See the lunar eclipse during the full beaver moon," 1 Dec. 2020 The last astronomical event of November will be a penumbral lunar eclipse, similar to the eclipse that took place in early July in North America, according to Accuweather. Susan Miller, USA TODAY, "A full Beaver Moon and lunar eclipse are coming Monday," 29 Nov. 2020 Early birds on the West Coast will be able to spot a total lunar eclipse on May 26. Cameron Johnson, Popular Mechanics, "How To Get Started in Astronomy," 10 Nov. 2020 The big event in 2021 will be the supermoon total lunar eclipse, which will be visible above the Pacific Northwest in the early hours of May 26. oregonlive, "Stargazing calendar 2021: Eclipses, meteor showers and other astronomical events this year," 30 Dec. 2020 Although this will not be a total lunar eclipse, at its peak, more than 97% of the moon will be blocked. Dean Regas, USA TODAY, "Lunar eclipses, meteor showers: Look out for these astronomical highlights coming in 2021," 31 Dec. 2020 The last lunar eclipse of the year will greet sky watchers across North and South America, Australia, and parts of Europe and Asia. Andrew Fazekas, Science, "10 spectacular stargazing events to watch in 2021," 29 Dec. 2020 But, unlike a normal full moon that reflects the sun’s illumination, during a lunar eclipse the moon emanates the Earth’s shadow (known as the umbra). Aliza Kelly Faragher, Allure, "Your Guide to Lunar & Solar Eclipses in 2021 and How They’ll Affect Your Life," 23 Dec. 2020 What is the difference between a solar and a lunar eclipse? Aliza Kelly Faragher, Allure, "Your Guide to Lunar & Solar Eclipses in 2021 and How They’ll Affect Your Life," 23 Dec. 2020

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

1667, in the meaning defined above

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The first known use of lunar eclipse was in 1667

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Last Updated

3 Mar 2021

Cite this Entry

“Lunar eclipse.” Dictionary, Merriam-Webster, Accessed 4 Mar. 2021.

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Britannica English: Translation of lunar eclipse for Arabic Speakers Encyclopedia article about lunar eclipse

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