UMBRA • E-FREE TRANSLATION.COM • Definition of Umbra

Add this Dictionary
to your website!
See more options...

Listen

noun

Umbra n. (pl. umbrae)

(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.

(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.

See images of 'Umbra'

Etymology of 'Umbra'

Collaborative International Dictionary of English 0.48

Share |

"Umbra" Quotes from Famous Books

... avait encore en ladite maison plusieurs meubles qu'il leur laissa pour memoire. Il a laisse quelques livres de medecine qui n'ont jamais ete imprimes, des tabulae astronomicae, de chorda recta et umbra, de doctrina theologica. La relation de son voyage est en latin, francais et anglais; il raconte, en y melant beaucoup de fables, ce qu'il a vu de curieux en Egypte, ...

— The Travels of Marco Polo, Volume 2 • Marco Polo and Rustichello of Pisa

Words linked to "Umbra" : shadow