umbra was our Word of the Day on 07/24/2015. Hear the podcast!
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Examples of umbra in a Sentence
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 of umbra from the Web
The moon casts its dark central shadow, called the umbra, onto a very narrow strip along the surface of the Earth.
The umbra, or moon's shadow, passes over Earth during the total eclipse, as viewed from the International Space Station on August 21, 2017.
On those clouds, bright sunshine defined the edges of the shadow — an elliptical cross-section of the moon’s conical umbra.
The line of totality will be inside the moon's umbra, or deep shadow.
According to Space.com, the three do not align perfectly, leaving a small area of the moon's shadow covered by a dark part of the Earth's shadow - the umbra.
Earth’s shadow has two parts: the umbra, which is the darker inner portion, and the penumbra, the lighter outer part.
The nearest area in the umbra to Sacramento is about 400 miles away along the totality path in Oregon.
So our next step was to filter the entire zone down to just public land, using a pair of mapping code libraries to analyze the topology of just the area inside the umbra.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'umbra.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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." The two senses of "umbrage" influenced "umbrageous," which can mean "inclined to take offense easily" as well as "affording shade."
Origin and Etymology of umbra
First Known Use: 1638See Words from the same year
Synonymsblack, blackness, candlelight, darkness, dusk, gloaming, gloom, murk, night, semidarkness, shade, shadows, twilight, dark
Antonymsblaze, brightness, brilliance, day, daylight, glare, glow, light, lightness
Related Wordsmidnight; blackout, brownout, dimout; shadiness, umbrage; dullness (also dulness), somberness; cloudiness, fogginess, haziness, mistiness, murkiness; dimness, faintness, gloominess, grayness, paleness; half-light
Near Antonymsmoonlight, starlight, sunlight; effulgence, radiance, radiancy, shine, sunshine; incandescence, luminance, luminescence, luminosity, luminousness
Seen and Heard
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