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

Drain

A channel, conduit, or pipe used to remove rain, wastewater, or sewage.

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.

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.

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.

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.

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.
References in periodicals archive ?
Pigtails are radiologically inserted and Penrose drains are flat rubber like and are very rarely used.
Supplies needed at discharge include: saline, Toomey syringes, leg bag, night bag, gauze dressings and tape (or pediatric drainable pouches) for Penrose drain.
Several reports have addressed issues with wound care and psychological and physiological aspects of wound care.[sup.14] In our technique, a Penrose drain prevents premature contraction of the wound and provides egress for residual infection.
The patient was extubated the next morning and the Penrose drain removed.
Contract awarded for 24 penrose drain pipe 1 "diameter x 15" to 18 "long, single sterile disposable packaging
A Penrose drain was placed in the incision, and the nose was packed.
Contract awarded for 65 penrose drain pipe 1/2 "diameter x 15" to 18 "in length, individually wrapped, sterile, disposable.
It now also includes a variety of sizes of latex penrose drains, a passive or open drainage system used in conjunction with a wound dressing.
Fluid collections were evacuated and the wounds were closed loosely around the penrose drains. The patient was left with a urethral catheter and no suprapubic drainage initially.