door (redirected from Bifold door)

door

Movable barrier installed in the entry of a room or building to restrict access or provide visual privacy. Early doors were hides or textiles. With monumental architecture came pivoting doors of rigid, permanent materials; important chambers often had stone or bronze doors. Pompeiian doors looked much like modern wooden doors; they were constructed of stiles (vertical planks) and rails (horizontal planks) fastened together to support panels and occasionally equipped with locks and hinges. The typical Western medieval door was of vertical planks backed with horizontal or diagonal bracing. In the 20th century, a single, hollow-core panel door became most common. Other types include the revolving door, folding door, sliding door (inspired by the Japanese shoji), rolling door, and Dutch door (divided horizontally so that the lower or upper part can be opened separately).

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door

(1) In a BBS system, a programming interface that lets an online user run an application program in the BBS.

(2) See drive door.

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door [dȯr]

(engineering)

A piece of wood, metal, or other firm material pivoted or hinged on one side, sliding along grooves, rolling up and down, revolving, or folding, by means of which an opening into or out of a building, room, or other enclosure is open or closed to passage.

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door

door nomenclature

1. An entranceway.

2. A barrier (usually solid) which swings, slides, tilts, or folds to close an opening in a wall or cabinet or the like. For additional definitions and illustrations of specific types, see automatic door, balanced door, battened door, blank door, blind door, board-and-battened door, car door, casement door, cellar door, Christian door, class-A door, class-B door, class-C door, class-D door, class-E door, crapaudine door, cross-and-bible door, divided door, double-acting door, double door, double-margin door, Dutch door, dwarf door, Egyptian door, elevator car door, false door, fire door, flap door, flush door, folding door, framed door, French door, half door, Holy door, jib door, landing door, ledged-and-braced door, ledged door, overhung door, Palladian door, paneled door, pocket door, revolving door, roll-up door, sash door, scuttle door, sham door, single-acting door, sliding door, storm door, swinging door, trapdoor, unframed door, vertical plank door, weather door, wicket, witch door, z-braced battened door, zambullo door.