Look up umbra in Wiktionary, the free dictionary. The umbra is the innermost and darkest part of a shadow, where the light source is completely blocked...

The umbra, penumbra and antumbra are three distinct parts of a shadow, created by any light source after impinging on an opaque object. Assuming no diffraction...

Bastia Umbra (Italian pronunciation: [baˈstiːa ˈumbra]) is a comune (municipality) in the Province of Perugia in the Italian region Umbria, located about...

Nocera Umbra is a town and comune in the province of Perugia, Italy, 15 kilometers north of Foligno, at an altitude of 520 m above sea-level. The comune...

HMS Umbra (P35) was a Royal Navy U-class submarine built by Vickers-Armstrongs at Barrow-in-Furness. So far she has been the only ship of the Royal Navy...

Umbra Vitae is an American death metal supergroup formed in 2020. The band features vocalist Jacob Bannon (Converge), guitarists Mike McKenzie (The Red...

Ameril Umbra Kato (18 May 1946 – 14 April 2015) was a Filipino terrorist who was the founder of the Bangsamoro Islamic Freedom Fighters (BIFF), a group...

Umbra is a genus of mudminnows native to Europe and North America. The currently recognized species in this genus are: Umbra krameri Walbaum, 1792 (European...

In Umbral calculus, the Bernoulli umbra B − {\displaystyle B_{-}} is an umbra, a formal symbol, defined by the relation eval ⁡ B − n = B n − {\displaystyle...

Dysschema umbra is a moth of the family Erebidae. It was described by Herbert Druce in 1885. It is found in El Salvador.[failed verification] Savela,...

Umbra is a sans-serif display typeface designed in 1935 by R. Hunter Middleton for the Ludlow Typograph company. It is an adaptation of the uppercase...

A Umbra Omega is the fifth full-length album by Norwegian black metal band Dødheimsgard, also known as DHG. It was released on March 16, 2015, by Peaceville...

Umbra et Imago (Latin for 'Shadow and Image') is a German gothic metal and Neue Deutsche Härte band formed in autumn 1991. The original lineup consisted...

divided into two distinctive parts: the umbra and penumbra. Earth totally occludes direct solar radiation within the umbra, the central region of the shadow...

Eretis umbra, commonly known as the small marbled elf, is a species of butterfly in the family Hesperiidae. It is found from South Africa to eastern Africa...

Aeronautica Umbra SA was an Italian aircraft manufacturer founded at Foligno in 1935 by Muzio Macchi. The firm produced SM.79 bombers for the Regia Aeronautica...

Plica umbra, the blue-lipped tree lizard or harlequin racerunner, is a species of lizard in the family Tropiduridae. The species is found in South America...

Bematistes umbra, the clouded bematistes, is a butterfly in the family Nymphalidae. It is found in Gambia, Guinea-Bissau, Sierra Leone, Liberia, Ivory...

Umbra was a collective of young black writers based in Manhattan's Lower East Side that was founded in 1962. Umbra was one of the first post-civil rights...

Schacontia umbra is a moth of the family Crambidae described by Maria Alma Solis and Paul Z. Goldstein in 2013. It is found in central Ecuador. The length...

Anomala umbra is a species of shining leaf chafer in the family of beetles known as Scarabaeidae. "Anomala umbra Report". Integrated Taxonomic Information...

Umbra is a home accessories design and manufacturing company. The company has headquarters in Toronto, Ontario, Canada and satellite offices in the Netherlands...

Pentila umbra is a butterfly in the family Lycaenidae. It is found in Gabon. Wikimedia Commons has media related to Pentila umbra. Wikispecies has information...

Hypatopa umbra is a moth in the family Blastobasidae. It is found in Costa Rica. The length of the forewings is 3.5–5.1 mm. The forewings are pale brown...

Poliosia umbra is a moth in the family Erebidae. It was described by Walter Rothschild in 1915. It is found in New Guinea, where it is only known from...

antumbra (from Latin ante, 'before, in front of', plus umbra) extending beyond the tip of the umbra, within which the object is completely in front of the...

Mordellistena umbra is a species of beetle in the genus Mordellistena of the family Mordellidae. It was described by Franciscolo in 1949b. Mordellidae...

Umbra is a graphics software technology company founded 2007 in Helsinki, Finland. Umbra specializes in occlusion culling, visibility solution technology...

Wiktionary, the free dictionary. Umbral is derived from the Latin word umbra, meaning "shadow". It is also the Spanish and Portuguese word for "threshold"...

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