Penumbra
[pi'nʌmbrә]
Definition
(n.) An incomplete or partial shadow.
(n.) 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.
(n.) The part of a picture where the shade imperceptibly blends with the light.
Typed by Anatole
Definition
n. a partial or lighter shadow round the perfect or darker shadow of an eclipse: the part of a picture where the light and shade blend into each other.—adjs. Penum′bral Penum′brous.
Edited by Ian