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   Pe·num·bra

   /pəˈnəmbrə/

   

   noun

   • 1. the partially shaded outer region of the shadow cast by an opaque object.
   • ▪ the shadow cast by the earth or moon over an area experiencing a partial eclipse.
   • ▪ the less dark outer part of a sunspot, surrounding the dark core.

   Word Origin mid 17th century: modern Latin, from Latin paene ‘almost’ + umbra ‘shadow’.

   Derivatives

   • 1. penumbral adjective

   Scrabble Points: 14

   • P

     3

   • E

     1

   • N

     1

   • U

     1

   • M

     3

   • B

     3

   • R

     1

   • A

     1

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