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Bookmark or Share- Penumbra | Moon, Sun & Shadow | Britannicapenumbra, (from Latin paene, “almost”; umbra, “shadow”), in astronomy, the outer part of a conical shadow cast by a celestial body, in which the light from the source is partially blocked—as compared to the umbra (q.v.), the shadow’s darkest, central part, where the light is totally excluded.
- Umbra, penumbra and antumbra - WikipediaThe 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.
- Penumbra Inc | Innovating Healthcare TechnologiesPenumbra is a global healthcare company that is focused on innovating novel technologies to help as many people as possible. Contact Us. Watch Video. Explore Our Products. Neuro. Vascular. Featured Product. Lightning Flash ™ 2.0. Next-gen software for the removal of venous thrombus and the treatment of PE. Feel The Power. In the News.
- Penumbra Definition & Meaning - Merriam-Webster1. 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.
- PENUMBRA Definition & Meaning | Dictionary.comPenumbra definition: 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.. See examples of PENUMBRA used in a sentence.
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