drain

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drain

1. a pipe or channel that carries off water, sewage, etc.
2. Surgery a device, such as a tube, for insertion into a wound, incision, or bodily cavity to drain off pus, etc.
3. Electronics the electrode region in a field-effect transistor into which majority carriers flow from the interelectrode conductivity channel
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

Drain

A channel, conduit, or pipe used to remove rain, wastewater, or sewage.
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 It might be outdated or ideologically biased.

Drain

 

an artificial underground channel (pipe, cavity) for collecting and discharging subsoil waters and for aerating soil. Drains differ according to function (driers, collecting mains), structure, and materials. Pipes are made of such materials as earthenware, wood, and plastic. Cavities are of the mole or the slotted type, filled with gravel or fascines.

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

drain

[drān]
(civil engineering)
A channel which carries off surface water.
A pipe which carries off liquid sewage.
(electricity)
(electronics)
The region into which majority carriers flow in a field-effect transistor; it is comparable to the collector of a bipolar transistor and the anode of an electron tube.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

drain

1. Any pipe in a building-drainage system which carries waste water or water-borne waste.
2. Any pipe or channel for carrying waste water or storm water.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

drain

(jargon)
(IBM) To allow a system to complete the processing of its current work before the system becomes unavailable. E.g. draining a device before taking it off-line or telling a web server in a server farm not to accept any new requests but to finish processing any requests it has already accepted.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

drain

One side of a field effect transistor. When the gate is pulsed, current flows from the source to the drain, or vice versa depending on the design. See collector.
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.
References in periodicals archive ?
Overall, Down the Drain maintains your attention, with many historical and current examples that make the book very accessible to the everyday Canadian.
Also, pushing the cable down through the basket strainer allows you to clean the slime-covered cable as you withdraw it by running clean water down the drain. (Believe me, this is a nice bonus!) And finally, since the drain is still fully assembled, you'll be able to tell, by running water in the sink, whether you've unclogged the drain.
Tests on other inks indicate there is not a disposal issue, but please do not interpret this to mean that the ink waste can go down the drain.
When it goes down the drain, it can produce organochlorines, which are suspected carcinogens as well as reproductive, neurological and immune-system toxins.
Except it doesn't go down the drain. It leaks out of pipes and is lost.
That symbolism of washing one's transgressions down the drain was in part the basis of the laundries run in Roman Catholic Ireland by the Sisters of Mercy, institutions which operated late into the 20th century.
Twenty-six years of naval service were flushed down the drain immediately, No pension.
Somehow, the institutions that have gone down the drain have to be replaced."
A First, turn the running faucet in your kitchen sink so that the water hits the sink bottom rather than runs directly down the drain. You'll notice a circle around the running water on the sink bottom.
Instead, it pulled down thousands of teachers, union members, scientists, journalists, actors, entertainers like us, who saw our lives disrupted, our jobs and careers go down the drain, our standing in the community lost, even our children harassed.
Research in the Los Angeles basin in 1999 revealed that, when lindane shampoos were rinsed down the drain, the pesticide readily contaminated the effluent and eventually the downstream waterways.
Due to a global economic crisis, demand for raw materials fell and the Argentine economy went down the drain. Administrations that followed tried out a statist model that culminated in the rise of peronismo.

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