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Penumbra Definition, Meaning & Usage | FineDictionary.com
- https://www.finedictionary.com/penumbra#:~:text=Penumbra%20%28Paint%29%20The%20part%20of%20a%20picture%20where,shadow%2C%20on%20all%20sides%2C%20and%20the%20full%20light.
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Penumbra Definition & Meaning - Merriam-Webster
- https://www.merriam-webster.com/dictionary/penumbra
- Definition of penumbra. 1 a : a space of partial illumination (as in an eclipse) between the perfect shadow on all sides and the full light. b : a shaded region surrounding the dark central portion of a sunspot. 2 : a surrounding or adjoining region in which something exists in a lesser degree : fringe the seventeenth century lay in the penumbra of the middle ages — Edward Eggleston.
Definition of penumbra - iDigitalPhoto Dictionary
- http://www.idigitalphoto.com/dictionary/penumbra
- penumbra Definition: Partially dark outer rim of a shadow of an object lit with a nearby light-source. * A large and distant light-source does not cast a signficant penumbra.
Definition of penumbra - What is, Meaning and Concept
- https://soetrust.org/misc/definition-of-penumbra-what-is-meaning-and-concept/
- Within the field of radiation oncology, the term penumbra is used to give a name to the area that constitutes the periphery of the main focus of treatment with X-rays. This concept is defined as the lateral distance between 80% and 20% of the isodose and its order of magnitude is the same as the result of the measurements taken in the ionization chamber.
Penumbra legal definition of Penumbra
- https://legal-dictionary.thefreedictionary.com/penumbra
- Penumbra. The rights guaranteed by implication in a constitution or the implied powers of a rule. The original and literal meaning of penumbra is "a space of partial illumination between the perfect shadow … on all sides and the full light" (Merriam Webster's Collegiate Dictionary, 10th ed., 1996). The term was created and introduced by astronomer Johannes Kepler in 1604 to …
Penumbra Definition, Meaning & Usage | FineDictionary.com
- https://www.finedictionary.com/penumbra
- Penumbra An incomplete or partial shadow. Penumbra (Paint) The part of a picture where the shade imperceptibly blends with the light. Penumbra (Astron) The shadow cast, in an eclipse, where the light is partly, but not wholly, cut off by the intervening body; the space of partial illumination between the umbra, or perfect shadow, on all sides, and the full light.
Penumbra | definition of penumbra by Medical dictionary
- https://medical-dictionary.thefreedictionary.com/penumbra
- penumbra. 1. Region of very low illumination on a dark background. 2. Zone in which the brightness varies from some illumination to zero ( umbra) in the shadow cast by an opaque object intercepting light from an extensive light source. See shadow.
Penumbra (law) - Wikipedia
- https://en.wikipedia.org/wiki/Penumbra_(law)
- The primary scientific definition of the word "penumbra" refers to the area of partial illumination "between the perfect shadow on all sides and the full light", represented here as …
Professional photographer | Penumbra Photography
- https://www.penfotos.com/
- Penumbra Photography offers professional freelance photography that brings your creative desires to reality. Memorialize your cherished occasions with awe-inspiring photography. From studio to outdoor locations, our canvas is limitless.
What is a penumbra xray? - AskingLot.com
- https://askinglot.com/what-is-a-penumbra-xray
- The penumbra is the lighter outer part of a shadow. The Moon's penumbra causes partial solar eclipses, and the Earth's penumbra is involved in penumbral lunar eclipses. Like any other opaque objects illuminated by a light source, the Moon and the Earth cast shadows into space as they block the sunlight that hits them.
PENUMBRA PHOTOGRAPHS | A GALLERY ON MARTHA'S …
- https://www.penumbraphotographs.com/
- Penumbra Photographs is a seasonal boutique gallery on the island of Martha's Vineyard in Edgartown.
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