eclipse
Americannoun
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eclipses
plural
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Astronomy.
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the obscuration of the light of the moon by the intervention of the earth between it and the sun lunar eclipse or the obscuration of the light of the sun by the intervention of the moon between it and a point on the earth solar eclipse.
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a similar phenomenon with respect to any other planet and either its satellite or the sun.
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the partial or complete interception of the light of one component of a binary star by the other.
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any obscuration of light.
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a reduction or loss of splendor, status, reputation, etc..
Scandal caused the eclipse of his career.
verb (used with object)
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eclipses,
present (3rd person singular)
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eclipsed,
past participle, past
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eclipsing
present participle
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to cause to undergo eclipse.
The moon eclipsed the sun.
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to make less outstanding or important by comparison; surpass.
a soprano whose singing eclipsed that of her rivals.
noun
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the total or partial obscuring of one celestial body by another. A solar eclipse occurs when the moon passes between the sun and the earth; a lunar eclipse when the earth passes between the sun and the moon See also total eclipse partial eclipse annular eclipse Compare occultation
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the period of time during which such a phenomenon occurs
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any dimming or obstruction of light
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a loss of importance, power, fame, etc, esp through overshadowing by another
verb
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to cause an eclipse of
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to cast a shadow upon; darken; obscure
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to overshadow or surpass in importance, power, etc
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The partial or total blocking of light of one celestial object by another. An eclipse of the Sun or Moon occurs when the Earth, Moon, and Sun are aligned.
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◆ In a solar eclipse the Moon comes between the Sun and Earth. During a total solar eclipse the disk of the Moon fully covers that of the Sun, and only the Sun's corona is visible.
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◆ An annular eclipse occurs when the Moon is farthest in its orbit from the Earth so that its disk does not fully cover that of the Sun, and part of the Sun's photosphere is visible as a ring around the Moon.
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◆ In a lunar eclipse all or a part of the Moon's disk enters the umbra of the Earth's shadow and is no longer illuminated by the Sun. Lunar eclipses occur only during a full moon, when the Moon is directly opposite the Sun.
Closer Look
The Sun is about 400 times wider than the Moon and 400 times farther from Earth, causing the two to appear to be almost exactly the same size in our sky. This relationship is also responsible for the phenomenon of the total solar eclipse, an eclipse of the Sun in which the disk of the Moon fully covers that of the Sun, blocking the Sun's light and causing the Moon's shadow to fall across the Earth. A total solar eclipse can be viewed only from a very narrow area on Earth, or zone of totality, where the dark central shadow of the Moon, or umbra, falls. From this perspective one can view the Sun's delicate corona—tendrils of charged gases that surround the Sun but are invisible to the unaided eye in normal daylight. This is also the only time when stars are visible in the day sky. Those viewing the eclipse from where the edges of the Moon's shadow, or penumbra, fall to Earth will see only a partial solar eclipse. The orbits of the Earth around the Sun and of the Moon around the Earth are not perfect circles, causing slight variations in how large the Sun and Moon appear to us and in the length of solar eclipses. The maximum duration of a total solar eclipse when the Earth is farthest from the Sun and the Moon is closest to the Earth is seven and a half minutes.
Discover More
The term eclipse is also used to refer to a general decline or temporary obscurity: “After taking the title last year, the team has gone into an eclipse this season.”
Other Word Forms
Derived Forms
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eclipsernoun
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noneclipsedadjective
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noneclipsingadjective
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uneclipsedadjective
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uneclipsingadjective
Inflected Forms
Nouns
Participles
Conjugated Forms
Present
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eclipsesimple
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eclipsessimple
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have eclipsedperfect
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has eclipsedperfect
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am eclipsingprogressive
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are eclipsingprogressive
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is eclipsingprogressive
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have been eclipsingperfect progressive
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has been eclipsingperfect progressive
Past
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eclipsedsimple
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had eclipsedperfect
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was eclipsingprogressive
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were eclipsingprogressive
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had been eclipsingperfect progressive
Future
Etymology
Origin of eclipse
1250–1300; Middle English eclips ( e ), clips < Anglo-French, Old French eclipse < Latin eclīpsis < Greek ékleipsis, equivalent to ekleíp ( ein ) to leave out, forsake, fail to appear ( see ec-) + -sis -sis
Explanation
Have you ever seen an eclipse? That's when the sun, earth or moon cross paths and cover each other up temporarily. A solar eclipse happens when the moon blocks our view of the sun for a bit. A lunar eclipse happens when the moon is on one side of the earth and the sun directly opposite, so the moon disappears. A TV eclipse, perhaps the most serious of all, is when your dad walks in at the most crucial part of the movie and blocks your view of the TV while he lectures about taking out the trash.
Vocabulary lists containing eclipse
Essential Academic Vocabulary for High School Students, List 2
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Eclipse Vocabulary
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ACT Vocabulary List
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Against the unusually golden corona, the vivid pink structure made an already rare eclipse scene even more striking.
From Science Daily ● Aug. 20, 2026
His op-ed reminded me of going to Nantucket on March 7, 1970, for a total eclipse visible only on that island.
From The Wall Street Journal ● Aug. 14, 2026
A tavern’s open door to my right revealed a line of patrons perched atop barstools, their backs to the open door, watching a TV showing the eclipse nearing totality.
From The Wall Street Journal ● Aug. 14, 2026
Wednesday's full eclipse may be something many of us remember for a long time: the special glasses, the colanders, and the eerie shadowing of the sun.
From BBC ● Aug. 13, 2026
That summer was exceptionally hot across much of the United States, though the summer of 1936 would cruelly eclipse even this one.
From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown
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The corona is the Sun's extremely hot outer atmosphere, and during most eclipses it appears white or silvery.
From Science Daily ● Aug. 20, 2026
Such events are sometimes informally called "Martian solar eclipses."
From Science Daily ● Aug. 13, 2026
While there will be smaller solar eclipses over the next few years, the next total eclipse will not take place until 23 September 2090.
From BBC ● Aug. 12, 2026
The Spanish government has implemented a “special security plan” ahead of the three major eclipses observable from its territory between now and January 2028 to manage the impact of crowds on public safety and services.
From The Wall Street Journal ● Aug. 12, 2026
They studied the movements of the moon and planets and predicted eclipses.
From "An Indigenous People’s History of the United States" by Roxanne Dunbar-Ortiz
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Smoke particles scattered even more of the remaining blue wavelengths, intensifying the golden tones in the visible light surrounding the eclipsed Sun.
From Science Daily ● Aug. 20, 2026
People also flocked to Salford Quays, and tourists at Blackpool Pleasure Beach broke off to watch as the moon slowly eclipsed the sun.
From BBC ● Aug. 12, 2026
Blue Owl Capital is transitioning to a multi-strategy manager as its real assets segment eclipsed credit in fundraising during the second quarter.
From The Wall Street Journal ● Jul. 30, 2026
Nationally, measles cases have nearly eclipsed last year’s total already and the country is poised to hit its highest case level since the late 1980s and early ’90s.
From Los Angeles Times ● Jul. 23, 2026
A star appeared behind them and was momentarily eclipsed by some movement.
From "Lord of the Flies" by William Golding
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LA28 expects to sell 14 million tickets between the Olympics and Paralympics, which would break a sales record, eclipsing the 12 million tickets sold for Paris 2024 Games.
From Los Angeles Times ● Aug. 7, 2026
During the 14-year tenure of Ryan Lance, ConocoPhillips reached a market capitalization of $140 billion, eclipsing British oil giant BP.
From The Wall Street Journal ● Aug. 6, 2026
Since making history with its largest-ever public listing, and then briefly eclipsing much larger and more established companies like Microsoft and Amazon in total market valuation, SpaceX has struggled to hold on to investor enthusiasm.
From BBC ● Aug. 4, 2026
If the restructuring went ahead, it would be the largest in the history of the automotive industry, eclipsing the 50,000 job cuts General Motors made after it declared bankruptcy in 2009.
From Barron's ● Jul. 24, 2026
Frankie stood with his back to the oil lamp, eclipsing its glow.
From "The City Beautiful" by Aden Polydoros
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.