Definify.com
Webster 1913 Edition
Umbra
‖
Um′bra
,Noun.
pl.
Umbrae
(#)
. [L., a shadow.]
1.
(Astron.)
(a)
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
. (b)
The central dark portion, or nucleus, of a sun spot.
(c)
The fainter part of a sun spot; – now more commonly called penumbra.
2.
(Zool.)
Any one of several species of sciaenoid 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
. 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. J. Smith (Dict. Econ. Plants).
Webster 1828 Edition
Umbra
UM'BRA
,Noun.