Ombre \Om"bre\, n. [F., of uncertain origin.] (Zool.)
A large Mediterranean food fish ({Umbrina cirrhosa): --
called also umbra, and umbrine.
[1913 Webster]
The Collaborative International Dictionary of English v.0.48
Penumbra \Pe*num"bra\, n. [NL., fr. L. paene almost + umbra
shade.]
1. An incomplete or partial shadow.
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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.
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Note: The faint shade surrounding the dark central portion of
a solar spot is also called the penumbra, and
sometimes umbra.
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3. (Paint.) The part of a picture where the shade
imperceptibly blends with the light.
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The Collaborative International Dictionary of English v.0.48
Umbra \Um"bra\, n.; 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.
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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.
[1913 Webster]
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).
[1913 Webster]
The Collaborative International Dictionary of English v.0.48
umbra
n : a region of complete shadow resulting from total obstruction
of light
[also: umbrae (pl)]
WordNet (r) 2.0
21 Moby Thesaurus words for "umbra":
adumbration, dark shade, eidolon, ghost, gloom, haunt, mere shadow,
penumbra, phantasm, phantom, revenant, shade, shadiness, shadow,
shadows numberless, silhouette, skiagram, skiagraph, spook,
umbrage, umbrageousness
Moby Thesaurus II by Grady Ward, 1.0
umbrae (pl)
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