Wiktionary
n. 1 A point in the range of a smooth function every neighborhood of which contains points on each side of its tangent plane. 2 (context game theory English) Such a point in the graphical representation of the possible outcomes of a game
Wikipedia
Saddle Point is a rocky point separating Corinthian Bay and Mechanics Bay on the north coast of Heard Island in the Antarctic.
The terminus of Challenger Glacier is located at the eastern side of Corinthian Bay, close west to Saddle Point. To the east of Challenger Glacier is Downes Glacier, whose terminus is located at Mechanics Bay, between Saddle Point and Cape Bidlingmaier.
Usage examples of "saddle point".
And because Saddle Point signals traveled at mere light speed, he could be a thousand years away from a return.
But, of course, there had been no way Nemoto could have known which Saddle Point gateway Madeleine would arrive from.
He wished Cassiopeia were here, his companion during those endless Saddle Point jaunts to one star after another .
Just waking up again, emerging from the Saddle Point network, had been proof.
She had been just twenty when Ben had departed for the Saddle Point.
Not a river valley, merely a saddle point between two great peaks.
Madeleine thought of the Gaijin flower-ships that had carried her to the Saddle Point radius and beyond: jewelled, perfect, faultless.