sliding door(n = noun.artifact) - a door that opens by sliding instead of swinging;
is a kind of door
has parts: pane, paneling, panelling
has particulars: barn door

accordion door, back door, barn door, bi-fold door, car door, cargo door, door, door guard, door latch, door prize, double door, dutch door, exterior door, fire door, folding door, french door, front door, half door, hatchback door, interior door, louvered door, next door, open door, outside door, revolving door, screen door, service door, show the door, side door, sliding, sliding keel, sliding scale, sliding seat, sliding window, stage door, storm door, swing door, swinging door, trap door, wicket door