re-entrant

/ riːˈɛntrənt /

adjective

1. (of an angle, esp in fortifications) pointing inwards Compare salient
2. maths (of an angle in a polygon) greater than 180° and thus pointing inwards

noun

1. an angle or part that points inwards

Example Sentences

Some of the cells (fig. 3, b) shew re-entrant curves, which prove that they have undergone division.

From Project Gutenberg

But we can have a non-re-entrant path over the whole board in fourteen moves, starting from any given square.

From Project Gutenberg

The best re-entrant attempt is shown, in which each knight has to trespass twice on other parts.

From Project Gutenberg

If you break the line at I, you will have a non-re-entrant solution starting from any I square.

From Project Gutenberg

Although we were not actually in the Salient itself, we were situated at the northern re-entrant to it.

From Project Gutenberg