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Plural for the partially shaded outer region of the shadow cast by an opaque object
“Each piece generates its own set of shadow and penumbra.”
Plural for the partial or total absence of light, such as within a shadow
“We, her husband and child, hide in the penumbra, partially seen and partially not.”
Plural for an area of uncertainty or intermediacy between two mutually exclusive states or categories
“These firms or businesses are not illegal in the strict sense, but there is a shadowy penumbra within which they live.”
Plural for an area that lies on the edge of something
“Some are accounts of the latest advances, but too many are in that weary penumbra of science inhabited by sociologists.”
Plural for something that covers or conceals
“They have a core of established meanings surrounded by a penumbra of uncertain meanings.”
Related Words and Phrases
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