|
|
1. (n.) umbra
shade; shadow.
2. umbra
the usual accompaniment or companion of a person or thing.
3. umbra
Astron.
4. umbra
the complete or perfect shadow of an opaque body, as a planet, where the direct light from the source of illumination is completely cut off.
5. umbra
the dark central portion of a sunspot.
6. umbra
a phantom or ghost.
Etymology: (1590–1600; < L: shade, shadow)
|
| Definition of 'umbra' |
Princeton's WordNet |
|
1. (noun) umbra
a region of complete shadow resulting from total obstruction of light
|
| Definition of 'umbra' |
Webster Dictionary |
|
1. (noun) umbra
the conical shadow projected from a planet or satellite, on the side opposite to the sun, within which a spectator could see no portion of the sun's disk; -- used in contradistinction from penumbra. See Penumbra
2. (noun) umbra
the central dark portion, or nucleus, of a sun spot
3. (noun) umbra
the fainter part of a sun spot; -- now more commonly called penumbra
4. (noun) umbra
any one of several species of sciaenoid food fishes of the genus Umbrina, especially the Mediterranean species (U. cirrhosa), which is highly esteemed as a market fish; -- called also ombre, and umbrine
|
|
|
|
|
| Alternative search options for 'umbra' |
|
|
|
|
|
|
|
Definitions of umbra 
