Umbra

1. (Astron.) Any one of several species of sciænoid food fishes of the genus Umbrina, especially the Mediterranean species (Umbrina cirrhosa), which is highly esteemed as a market fish; -- called also ombre, and umbrine.
1. 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. The central dark portion, or nucleus, of a sun spot.
3. The fainter part of a sun spot; -- now more commonly called penumbra.
Umbra tree (Bot.),
a tree (Phytolacca dioica) of the same genus as pokeweed. It is native of South America, but is now grown in southern Europe. It has large dark leaves, and a somber aspect. The juice of its berries is used for coloring wine.