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 It might be outdated or ideologically biased.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 ?
As part of the Typar Weather Protection System, Typar Drainable Wrap is covered by an industry-leading lifetime-limited warranty that includes both materials and labor.
Each unit was assigned a specific thickness based on core descriptions, and was given a value for drainable porosity and average lithium and potassium content based on laboratory analyses of samples collected during exploration drilling.
Sieved gravel (a) was in line with the requirement of 35-62 mm size fraction recommended for landfill drainable layer (Rowe et al.
The model features RamBox cargo management system that includes weatherproof, lockable, illuminated, drainable storage bins; pickup bed dividers; a two-foot bed extender and a cargo rail system with sliding adjustable cleats.
However, if the bedside ultrasound were to demonstrate a reasonable quantity of drainable ascites (case 2 and a previous report), the avoidance of full laparotomy by either percutaneous catheter placement or a limited subxiphoid incision would certainly be preferred.
Put a drainable paddling pool next to the sand so the children can play with sand and water together.
Patent 7,309,188 (December 18, 2007), "Drainable Base Course for a Landfill and Method of Forming the Same," Peter J.
An interesting feature that the truck offers is the RamBox, a lockable, drainable, lighted storage bin that runs the length of the 5-ft, 7-in.
If the windows are part of a drainable wall system, check to ensure that flashing opening and weep holes are not clogged.
* Drainable valves or stop and waste valves have a small opening on the non-pressure side to allow drainage when they are in the cut-off position.
Pouches to contain stool are categorized as drainable or closed-ended.