reentrant angle

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reentrant angle

angle is a reentrant angle (Academy Artworks)

also re-entrant angle
n.
In an irregular polygon, an interior angle that is greater than 180° and whose apex faces into the polygon.

An internal angle usually less than 90°.

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An angular depression, bounded by crystal faces, that characterizes twinned crystal intergrowths.

Note: click on a word meaning below to see its connections and related words.

The noun has one meaning:

Meaning #1: an interior angle of a polygon that is greater than 180 degrees
  Synonym: reentering angle
  Antonym: salient angle (meaning #1)

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