umbra

n. shade, shadow; area of the shadow of an eclipse, dark center of a sunspot; spectral image

For other uses of the word "umbra", see Umbra (disambiguation). For other uses of the word "penumbra", see Penumbra (disambiguation). The umbra (Latin: "shadow") is the darkest part of a shadow. From within the umbra, the source of light is completely blocked by the object causing the shadow. This contrasts with the penumbra, where the light source is only partially blocked and there is only a partial shadow.
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Noun
1. a region of complete shadow resulting from total obstruction of light
(hypernym) shadow

n. umber, reddish-brown or brown soil used in making pigments of the same color; reddish-brown or brown color of pigments made of a certain soil

adj. umbrian, from Umbria, born or living in Umbria

n. umbrian, native or resident of the Italian region Umbria