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.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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."