center-opening door

biparting door

A double door having two leaves (one on each side of the center line of the door) which slide in the same plane and meet at the center line.
References in periodicals archive ?
A rigid-panel center-opening door spanning a six-foot-wide opening, for example, requires approximately three feet of wall space on each side when its panels open.
And Lincoln could have a four-door convertible with center-opening doors. Each car would appeal to different customers."