Erin Jacobs
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Penumbra is a global healthcare company that is focused on innovating novel technologies to help as many people as possible.
PENUMBRA definition: 1. a part of a shadow in which only some of the light is blocked, used especially about a shadow…. Learn more.
The penumbra (from the Latin paene "almost, nearly" and umbra "shadow") is the region in which only a portion of the light source is obscured by the occluding body. An observer in the penumbra experiences a partial eclipse.
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.
A partial shadow between regions of full shadow (the umbra) and full illumination, especially as cast by Earth, the Moon, or another body during an eclipse. During a partial lunar eclipse, a portion of the Moon's disk remains within the penumbra of Earth's shadow while the rest is darkened by the umbra.
/pəˈnʌmbrə/ /pɪˈnʌmbrə/ IPA guide. Other forms: penumbras; penumbrae. When you measure your shadow to calculate the angle of the sun in the sky, be sure to measure to the edges of your shadow, to the penumbra, the part of a shadow that is not as dark as the center.
Definition of penumbra noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
1. a. the partial or imperfect shadow outside the complete shadow of an opaque body, as a planet, where the light from the source of illumination is only partly cut off. b. the grayish marginal portion of a sunspot. 2. a shadowy, indefinite, or marginal area.
A complete guide to the word "PENUMBRA": definitions, pronunciations, synonyms, grammar insights, collocations, examples, and translations.
1. the partly lighted area surrounding the complete shadow (umbra) of a body, as the moon, during an eclipse. 2. the less dark region surrounding the dark central area of a sunspot. 3. a vague, indefinite, or borderline area.
