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BNC: 0 COCA: 33538
BNC: 0 COCA: 33538

umbra

noun

um·​bra ˈəm-brə How to pronounce umbra (audio)
plural umbras or umbrae ˈəm-(ˌ)brē How to pronounce umbra (audio)
-ˌbrī
1
a
: a conical shadow excluding all light from a given source
specifically : the conical part of the shadow of a celestial body excluding all light from the primary source
b
: the central dark part of a sunspot
2
: a shaded area
umbral
ˈəm-brəl How to pronounce umbra (audio)
adjective

Did you know?

The Latin word umbra ("shade, shadow") has given English a range of words in addition to umbra itself. An umbrella can provide us with shade from the sun. So can an umbrageous tree. (In this case, umbrageous means "affording shade.") The connection to shade or shadow in other umbra words is less obvious. When we say someone takes umbrage, we mean they take offense, but in times past people used the word as a synonym of shade or shadow. These two senses of umbrage influenced umbrageous, which can mean "inclined to take offense easily" as well as "affording shade."

Synonyms

Example Sentences

strange noises were coming from the wooded umbra beyond our campfire during a solar eclipse observers located within the umbra experience a complete blocking of the sun by the moon
Recent Examples on the Web As for timing, on Sunday night, the moon will enter the umbra, the inner part of the Earth’s shadow, at 9:28 p.m. Leada Gore | Lgore@al.com, al, 15 May 2022 On Sunday night, the moon will enter the umbra – the inner part of the Earth’s shadow – at 9:28 p.m. Leada Gore | Lgore@al.com, al, 8 May 2022 During a full lunar eclipse, the moon passes through the darkest part of the Earth's shadow -- the umbra. Katie Hunt, Megan Marples And Ashley Strickland, CNN, 16 May 2022 When the moon passes through the darkest part of the Earth's shadow, called the umbra, it's known as a total lunar eclipse, the space agency said. Megan Marples And Ashley Strickland, CNN, 13 May 2022 The excitement will begin at precisely 10:27 p.m. when the first hint of the Earth’s darker shadow, called the umbra, appears on the disc of the moon. Dean Regas, The Enquirer, 10 May 2022 As the moon exits Earth’s umbra, the red color fades. Leigh Morgan, al, 15 May 2022 The penumbral eclipse, when the moon is completely immersed in the penumbral cone of the Earth without touching the umbra, the inner part of Earth's shadow, is expected to begin Sunday just after 9:30 p.m. ET, according to NASA. Julia Jacobo, ABC News, 12 May 2022 The ending, until next time The eclipse will end when the Earth’s umbra finally leaves the lunar surface at 1:55 a.m. on the morning of May 16, and the moon will return to its full brilliance. Dean Regas, The Enquirer, 10 May 2022 See More

Word History

Etymology

Latin

First Known Use

1638, in the meaning defined at sense 2

Time Traveler
The first known use of umbra was in 1638
BNC: 0 COCA: 33538

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