(heraldry, of a four-legged animal) Walking, usually to the right, and looking straight ahead with the right forepaw raised from the ground. / (obsolete) Currently in use; in vogue.

plural of en passant.

(chess) A move in which a pawn captures an opposing pawn on the same rank immediately after the latter has moved forward two squares on its first move in the game, as if it had moved forward only one square.

In passing, by the way, incidentally. / (of capturing an enemy pawn in chess) By moving one's pawn to the square that the enemy pawn has just passed over.

(of a capture in chess) Performed by a pawn on an enemy pawn that has just passed over its attack zone.