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Penumbra   Listen
noun
Penumbra  n.  
1.
An incomplete or partial shadow.
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. Note: The faint shade surrounding the dark central portion of a solar spot is also called the penumbra, and sometimes umbra.
3.
(Paint.) The part of a picture where the shade imperceptibly blends with the light.






Collaborative International Dictionary of English 0.48








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"Penumbra" Quotes from Famous Books



... were screens and rich Turkey rugs, and here the Bayfield household ordinarily had the lamps set after dinner and gathered before the fire, talking little, enjoying the long pauses filled with the hiss of logs and the monotonous drip and trickle of water in the penumbra. ...
— The Westcotes • Arthur Thomas Quiller-Couch

... followed,—soon, that is, in comparison with all he had ever done before! The "Airs of Palestine," like the night-blooming cereus,—the century-plant,—flowering at last, and all at once and most unexpectedly too, after generations have waited for it, as for the penumbra of something foretold, until both their patience and their faith have almost failed. But, from the very first, there were signs of growth not to be mistaken,—of inward growth, too,—and oftentimes an appearance of slowly ...
— The Atlantic Monthly, Volume 18, No. 110, December, 1866 - A Magazine of Literature, Science, Art, and Politics • Various

... 75,000. Though this is probably a maximum rather than an average, nevertheless the members are mostly young men whose revolutionary ardor counterbalances their want in numbers. It is, moreover, an organization that has a wide penumbra. It readily attracts the discontented, the unemployed, the man without a horizon. In an instant it can lay a fire and put an entire police ...
— The Armies of Labor - Volume 40 in The Chronicles Of America Series • Samuel P. Orth

... intellect does not really grasp the reality of Change, for it is adapted to solids and to concepts, it resembles the cinematograph film. Then he has tried to show us that in Perception there is really much more than we think, for our intellect carves out what is of practical interest, while the penumbra or vague fringes of perceptions which have no bearing on action are neglected. By his advocacy of a real psychological Time, in opposition to the physical abstraction which bears the name, he again brought out the inadequacy of intellect to grasp Life in its flow and has put before us the soul's ...
— Bergson and His Philosophy • J. Alexander Gunn



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