back door
backdoor | a secret or underhand means of access (to a place or a position), he got his job through the back door |
| trap-door spider | American spider that constructs a silk-lined nest with a hinged lid |
| actuator | a mechanism that puts something into automatic action |
AND circuit
AND gate | a circuit in a computer that fires only when all of its inputs fire |
| arrival gate | gate where passengers disembark |
back door
backdoor
back entrance | an entrance at the rear of a building |
| barn door | the large sliding door of a barn |
| bi-fold door | an interior door |
| car door | the door of a car |
| cargo door | door used to load or unload cargo |
centerboard
centreboard
drop keel
sliding keel | a retractable fin keel used on sailboats to prevent drifting to leeward |
| departure gate | gate where passengers embark |
| door | a swinging or sliding barrier that will close the entrance to a room or building or vehicle, he knocked on the door, he slammed the door as he left |
| door | a room that is entered via a door, his office is the third door down the hall on the left |
| door | a structure where people live or work (usually ordered along a street or road), the office next door, they live two doors up the street from us |
doorway
door room access
threshold | the entrance (the space in a wall) through which you enter or leave a room or building, the space that a door can close, he stuck his head in the doorway |
| double door | two vertical doors that meet in the middle of the door frame when closed |
Dutch door
half door | an exterior door divided in two horizontally, either half can be closed or open independently |
exterior door
outside door | a doorway that allows entrance to or exit from a building |
| fire door | a fireesistant door that can be closed to stop the spread of a fire |
folding door
accordion door | an interior door that opens by folding back in sections (rather than by swinging on hinges) |
| French door | a light door with transparent or glazed panels extending the full length |
front door
front entrance | exterior door (at the entrance) at the front of a building |
| gate | a movable barrier in a fence or wall |
| gate logic gate | a computer circuit with several inputs but only one output that can be activated by particular combinations of inputs |
| gate | passageway (as in an air terminal) where passengers can embark or disembark |
| Golden Gate Bridge | a suspension bridge across the Golden Gate |
hatchback
hatchback door | a sloping rear car door that is lifted to open |
| head gate | a gate upstream from a lock or canal that is used to control the flow of water at the upper end |
| interior door | a door that closes off rooms within a building |
| latch door latch | spring-loaded doorlock that can only be opened from the outside with a key |
| lock-gate | a gate that can be locked |
NAND circuit
NAND gate | a logic gate that produces an output that is the inverse of the output of an AND gate |
OR circuit
OR gate | a gate circuit in a computer that fires when any of its inputs fire |
revolving door
revolver | a door consisting of four orthogonal partitions that rotate about a central pivot, a door designed to equalize the air pressure in tall buildings |
rotary actuator
positioner | (computer science) the actuator that moves a read
write head to the proper data track |
screen door
screen | a door that consists of a frame holding metallic or plastic netting, used to allow ventilation and to keep insects from entering a building through the open door, he heard the screen slam as she left |
service door
service entrance
servant's entrance | an entrance intended for the use of servants or for delivery of goods and removal of refuse |
side door
side entrance | an exterior door at one side of a building |
slide playground slide
sliding board | plaything consisting of a sloping chute down which children can slide |
| sliding door | a door that opens by sliding instead of swinging |
| sliding seat | rower's seat that slides fore and aft |
| sliding window | a window that open by sliding horizontally |
sluicegate
sluice valve
floodgate
penstock head gate water gate | regulator consisting of a valve or gate that controls the rate of water flow through a sluice |
| stage door | an entrance to the backstage area of theater, used by performers and other theater personnel |
starting gate
starting stall | a movable barrier on the starting line of a race course |
| storm door | an extra outer door for protection against severe weather or winter |
swing door
swinging door | a door that swings on a double hinge, opens in either direction |
| tail gate | a gate downstream from a lock or canal that is used to control the flow of water at the lower end |
threshold element
threshold gate | a logic element that performs a threshold operation |