Word of the Day – Penumbra

By May 18, 2017Word of the Day

Penumbra (noun)

pen-um-bra

A half shadow. The partially shaded outer region of the shadow cast by an opaque object. Also, A peripheral or indeterminate area or group.

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

Example sentences

“As I dodged the heat of the day, standing in the penumbra of the large mansion house.”

“The problem is the penumbra of theory expands the potential answer too greatly.”

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