occultation

noun

oc·​cul·​ta·​tion ˌä-(ˌ)kəl-ˈtā-shən How to pronounce occultation (audio)
1
: the state of being hidden from view or lost to notice
2
: the interruption of the light from a celestial body or of the signals from a spacecraft by the intervention of a celestial body
especially : an eclipse of a star or planet by the moon

Examples of occultation in a Sentence

Recent Examples on the Web
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In some regions across Africa, Europe, Asia, and North America, the moon will pass directly in front of Venus — a rare event called a lunar occultation, Star Walk said in a Facebook post. Jenna Prestininzi, Freep.com, 19 Sep. 2025 On June 25, 2025, Rick Nolthenius, an astronomer at Cabrillo College in Aptos, California, and his former student, amateur astronomer Kirk Bender, set out to observe the Quaoar system during an occultation. Nola Taylor Tillman, Space.com, 10 Sep. 2025 Here comes the public bathroom again: a counter-place where private and relational dimension mingle, where the visible challenges the invisible, where decency collides with guilty pleasure and exposure flirts with occultation. Luisa Zargani, Footwear News, 3 Sep. 2025 The third one was new to me – It’s called radio occultation. John Werner, Forbes.com, 2 Aug. 2025 See All Example Sentences for occultation

Word History

Etymology

Middle English occultacion, borrowed from Latin occultātiōn-, occultātiō "concealment, interruption of light from a celestial body," from occultāre "to prevent from being seen, conceal, keep secret" + -tiōn- -tiō, suffix of verbal action — more at occult entry 1

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of occultation was in the 15th century

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Cite this Entry

“Occultation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/occultation. Accessed 3 Oct. 2025.

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