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- Dictionaryumbra/ˈʌmbrə/
noun
- 1. the fully shaded inner region of a shadow cast by an opaque object, especially the area on the earth or moon experiencing the total phase of an eclipse.
- 2. shadow or darkness: literary "an impenetrable umbra seemed to fill every inch of the museum"
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The meaning of UMBRA is 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. Did you know?
Umbra is the darkest part of a shadow, where the light source is completely blocked by the occluding body. Learn how umbra, penumbra and antumbra are formed by celestial bodies and other objects, and see diagrams and images of eclipses and sunspots.
Umbra is a noun that means shade, shadow, or the darkest part of a shadow. It can also refer to the dark central region of a sunspot or the complete shadow of an opaque body during an eclipse.
The very darkest part of a shadow is the umbra. It's where the light source is completely blocked by the object in front of it. You'll most often encounter the word umbra in astronomy, along with penumbra and sometimes antumbra.
Umbra is the dark inner part of a shadow, especially during an eclipse. Learn how to use this word in physics, astronomy and literature, and see translations in different languages.
Definition of umbra noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Umbra is a noun that means a dark area, especially the blackest part of a shadow. It can also refer to the dark central cone of shadow projecting from a planet or satellite, the dark central part of a sunspot, or a phantom or ghost.
