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1. a mountain pass or gap, esp one providing entry into another country or region
2. (in a large airport) any of the numbered exits leading to the airfield or aircraft
3. Horse racing short for starting gate
4. Electronics
a. a logic circuit having one or more input terminals and one output terminal, the output being switched between two voltage levels determined by the combination of input signals
b. a circuit used in radar that allows only a fraction of the input signal to pass
5. the electrode region or regions in a field-effect transistor that is biased to control the conductivity of the channel between the source and drain
6. a component in a motion-picture camera or projector that holds each frame flat and momentarily stationary behind the lens
7. a slotted metal frame that controls the positions of the gear lever in a motor vehicle
8. Rowing a hinged clasp to prevent the oar from jumping out of a rowlock
9. a frame surrounding the blade or blades of a saw


2 Dialect
1. the channels by which molten metal is poured into a mould
2. the metal that solidifies in such channels


A passageway in a fence, wall, or other barrier which slides, lowers, or swings shut, and is sometime of open construction.


In Indian architecture, a monumental gateway tower to a Hindu temple, usually highly decorative.

moon gate

A circular opening in a wall, in traditional Chinese architecture.


A monumental Chinese arch or gateway with one, three or five openings, erected at the entrance to a palace, tomb, or processional way; they are usually built of stone in imitation of earlier wood construction.


An elaborately carved ceremonial gateway in Indian, Buddhist and Hindu architecture, with two or three lintels between two posts.


A monumental, freestanding gateway to a Shinto shrine, consisting of two pillars with a straight cross piece at the top and a lintel above it, usually curving upward.



a projection on a casting; a piece of metal that has hardened in the gating. After being separated from castings, gates are used in the burden in smelting metal.



(Russian, shiber), a closing device in the form of a slide or damper, used to open or close a channel for the flow of liquids or gases. Gates include draft-regulating dampers in the flues of industrial furnaces and boiler installations as well as sluice gates designed to shut off water-intake channels from a river or to close connections between channels. The working member of a slidingvane pump is also a type of gate. Small gates are operated manually; large gates are operated by toothed racks, worm drives, and the like.

What does it mean when you dream about a gate?

Gates represent entrances to a new place or new circumstances in life. They also symbolize the “exit” from old, unwanted conditions. (See also Door.)


(civil engineering)
A movable barrier across an opening in a large barrier, a fence, or a wall.
A circuit having an output and a multiplicity of inputs and so designed that the output is energized only when a certain combination of pulses is present at the inputs.
A circuit in which one signal, generally a square wave, serves to switch another signal on and off.
One of the electrodes in a field-effect transistor.
An output element of a cryotron.
To control the passage of a pulse or signal.
In radar, an electric waveform which is applied to the control point of a circuit to alter the mode of operation of the circuit at the time when the waveform is applied. Also known as gating waveform.
A device, such as a valve or door, for controlling the passage of materials through a pipe, channel, or other passageway.
A device for positioning the film in a camera, printer, or projector.
(graphic arts)
The area or component in which the film is held at a fixed relationship to a lens.
The opening in a casting mold through which molten metal enters the cavity. Also known as in-gate.
The position on the extension of the axis of a runway in use above which an aircraft heading toward that runway is required to pass at a time assigned by proper control authority.
A movable barrier of shielding material used for closing a hole in a nuclear reactor.
A metal part in the rear of the cylinder of old-pattern revolvers that was turned out to expose the cylinder for loading.


A passageway through a fence, wall, or other barrier, which slides, lowers, or swings open or shut.


gateclick for a larger image
i. The point where passengers board the airplane at the airport
ii. The point at which a commercial flight starts.
iii. A removable lock to limit the maximum travel of the throttle under normal conditions.
iv. The position on an extended runway centerline where inbound aircraft are required to pass at a time assigned by approach control.
v. The range of the fuel-air ratio through which combustion can be started. This normally ranges from 1:18 to 1:8. See also fuel-air mixture.
vi. In air interception terminology, it means to fly at a maximum speed for a limited period.


GAT Extended? Based on IT.

[Sammet 1969, p. 139].


A low-level digital logic component. Gates perform Boolean functions (e.g. AND, NOT), store bits of data (e.g. a flip-flop), and connect and disconnect various parts of the overall circuit to control the flow of data (tri-state buffer).

In a CPU, the term applies particularly to the buffers that route data between the various functional units. Each gate allows data to flow from one unit to another or enables data from one output onto a certain bus.


(1) A switch that is opened or closed.

(2) A group of transistors that makes up an AND, OR or NOT Boolean logic gate. See Boolean gates, logic gate and gate array.

(3) In a field effect transistor (FET), the gate is the element that acts as a trigger to cause the transistor to switch. In a bipolar transistor, the gate is called the "base." See transistor, FET and MOSFET.

The Gate in an NMOS Transistor
The gate is the trigger line. When pulsed, an electromagnetic field causes the switch to close.
References in classic literature ?
For, in sooth, 'twill work no good to march upon the gates if they be closed.
You may know that the gates are fast locked, for this morning, to all who would come in, although they let any pass out who will.
When they reached the wall De Vac and the Prince were upon the outside, and the Frenchman had closed and was endeavoring to lock the gate.
Then with a bound he leaped between Lady Maud and the gate, so that she could not retreat into the garden and give the alarm.
Even such world-old cities as ancient Aaanthor were as yet undreamed of when the races lived that built such gates as these.
O Tario, most glorious Jeddak," replied Jav, "these be strangers who came with the hordes of Torquas to our gates, saying that they were prisoners of the green men.
The love of a strong man is ever a lure to a normal woman, and never more strongly did Dede feel the lure than now, looking across the closed gate at Burning Daylight.
When all was said, Burning Daylight had a mighty connotation--one to touch any woman's imagination, as it touched hers, the gate between them, listening to the wistful and impassioned simplicity of his speech.
At the next turn they came in sight of the gate, where, beneath several flares, they saw a group of at least twenty warriors prepared to seize them, while from the opposite direction the roars of the pursuing lions sounded close upon them, mingling with the screams of numerous parrots which now circled about their heads.
Almost at the same moment, the beg of the great gate rang again, and a loud noise of feet and voices came pouring into the courtyard.
Therefore Jellia, hobbling along like an aged woman, was led from the city gates and taken before Glinda.
The eagle let go her hold; she did not succeed in taking it home to her little ones, and so will it be--with ourselves; even though by a mighty effort we break through the gates and wall of the Achaeans, and they give way before us, still we shall not return in good order by the way we came, but shall leave many a man behind us whom the Achaeans will do to death in defence of their ships.