WordNet
Usage examples of "re-entrant".
You are asked to describe a complete re-entrant tour on this board, starting where you like, but visiting every square in each successive compartment before passing into another one, and making the final leap back to the square from which the knight set out.
In other words, the smallest rectangular board on which a re-entrant tour is possible is one that is 6 by 5.
The best re-entrant attempt is shown, in which each knight has to trespass twice on other parts.
The puzzle is to cut the board differently into four parts, each of the same size and shape, so that a re-entrant knight's tour may be made on each part.
I think this is the best result that has ever been obtained (either re-entrant or not), and nobody can yet say whether a perfect solution is possible or impossible.
Doubtless some troops had to be stationed to block the dangerous re-entrant, but, after Quatre Bras, it seemed futile to expect the Belgians to stand and fight.
A captain pointed towards the left flank where the British ridge was pierced and flattened by a shallow re-entrant and where a battalion of Dutch-Belgian troops was in full view of the enemy.
The path debouched about the midst of the re-entrant angle, the woods stopping some distance inland.
Bloom had visited Labyrinth, and found a way to penetrate its coiled and re-entrant geometry.
Beyond it, the ditch and trees curved back again in a re-entrant, so that the field formed a bay with a bank running all the way round.