PENUMBRAS

Noun

penumbras

plural of penumbra

Source: Wiktionary


PENUMBRA

Pe*num"bra, n. Etym: [NL., fr. L. paene almost + umbra shade.]

1. An incomplete or partial shadow.

2. (Astron.)

Definition: 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. Sir I. Newton.

Note: The faint shade surrounding the dark central portion of a solar spot is also called the penumbra, and sometimes umbra.

3. (Paint.)

Definition: The part of a picture where the shade imperceptibly blends with the light.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

22 April 2025

BRIGHT

(adjective) made smooth and bright by or as if by rubbing; reflecting a sheen or glow; “bright silver candlesticks”; “a burnished brass knocker”; “she brushed her hair until it fell in lustrous auburn waves”; “rows of shining glasses”; “shiny black patents”


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Coffee Trivia

Raw coffee beans, soaked in water and spices, are chewed like candy in many parts of Africa.

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