reentrant

also adj.

Reentering; pointing inward.

n.

A reentrant angle or part.

Two faces of a building meeting at an external angle form a salient, while two walls meeting at an internal angle form a re-entrant. An external angle or salient with an internal angle formed in it, as though, on plan, a small square had been removed from the angle of the building, is a re-entrant.

IN BRIEF: adj. - (of angles) pointing inward.

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

The adjective has one meaning:

Meaning #1: (of angles) pointing inward
  Synonym: reentrant
  Antonym: salient (meaning #2)

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