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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
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005


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.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



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.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

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.)

The Dream Encyclopedia, Second Edition © 2009 Visible Ink Press®. All rights reserved.


(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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


A passageway through a fence, wall, or other barrier, which slides, lowers, or swings open or shut.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.


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.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved


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.
This article is provided by FOLDOC - Free Online Dictionary of Computing (


(1) A switch that is opened or closed. See switch.

(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.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
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