Definition of umbra. Meaning of umbra. Synonyms of umbra

Here you will find one or more explanations in English for the word umbra. Also in the bottom left of the page several parts of wikipedia pages related to the word umbra and, of course, umbra synonyms and on the right images related to the word umbra.

Definition of umbra

umbra
Ombre Om"bre, n. [F., of uncertain origin.] (Zo["o]l.) A large Mediterranean food fish (Umbrina cirrhosa): -- called also umbra, and umbrine.
umbra
Penumbra Pe*num"bra, n. [NL., fr. L. paene almost + umbra shade.] 1. An incomplete or partial shadow. 2. (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. --Sir I. Newton. Note: The faint shade surrounding the dark central portion of a solar spot is also called the penumbra, and sometimes umbra. 3. (Paint.) The part of a picture where the shade imperceptibly blends with the light.

Meaning of umbra from wikipedia

- The umbra, penumbra and antumbra are three distinct parts of a shadow, created by any light source after impinging on an opaque object. ****uming no diffraction...
- 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...
- divided into two distinctive parts: the umbra and penumbra. Earth totally occludes direct solar radiation within the umbra, the central region of the shadow...
- as Umbra arrives. 13 and Umbra duels each other and Umbra wins despite suffering heavy wounds. The Handler arrives and orders Umbra to kill 13, Umbra disobeys...
- Umbra is a graphics software technology company founded 2007 in Helsinki, Finland. Umbra specializes in occlusion culling, visibility solution technology...
- 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...
- Ameril Umbra Kato (18 May 1946 – 14 April 2015) was a Filipino Islamic militant who was the founder of the Bangsamoro Islamic Freedom Fighters (BIFF)...
- Umbra Vitae is an American death metal supergroup formed in 2020. The band features vocalist Jacob Bannon (Converge), guitarists Mike McKenzie (The Red...
- 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...