tube

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Related to going down the tubes: gone down the tubes, went down the tube

tube,

in electronics: see electron tubeelectron tube,
device consisting of a sealed enclosure in which electrons flow between electrodes separated either by a vacuum (in a vacuum tube) or by an ionized gas at low pressure (in a gas tube).
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.

Tube

A long, hollow cylinder, or other hollow shape; typically a flexible or thin-walled metal cylinder, as opposed to a pipe.

tube

[′tüb]
(biology)
A narrow channel within the body of an animal or plant.
(electronics)
(engineering)
A long cylindrical body with a hollow center used especially to convey fluid.
(geology)
A passage in a cave having smooth sides and an elliptical to nearly circular cross section.
(ordnance)
The main part of a gun, the cylindrical piece of metal surrounding the bore; tube is frequently used in referring to artillery weapons, and barrel is more frequently used in referring to small arms.

tube

1. A thin-walled pipe.
2.See lamp.

tube

1. Anatomy
b. any hollow cylindrical structure
2. Botany
a. the lower part of a gamopetalous corolla or gamosepalous calyx, below the lobes
b. any other hollow structure in a plant
3. Brit the tube
a. an underground railway system
b. the tunnels through which the railway runs
c. the train itself
d. ™ the London underground railway system
4. Electronics
a. another name for valve
5. Surfing the cylindrical passage formed when a wave breaks and the crest tips forward

tube

(hardware)
A CRT terminal. Never used in the mainstream sense of TV; real hackers don't watch TV, except for Loony Toons, Rocky & Bullwinkle, Trek Classic, the Simpsons, and the occasional cheesy old swashbuckler movie.

tube

(electronics)

tube

(jargon)
(IBM) To send a copy of something to someone else's terminal. "Tube me that note."
References in periodicals archive ?
In fact it could have helped stop the Yard going down the tubes.
GOING down the tubes is usually a terminal experience for most companies - but at D.
A small family-run business is going down the tubes, thousands of pounds of investment seem to have been wasted and father and son blame each other.
As Jim Wright was going down the tubes, for example, his lawyer actually lobbied a group of blue-chip lobbyists in a futile bid to keep the Speaker's job.
There was no sign of life yesterday at the house which Mr Foy shares with his wife and daughter as news broke that he will trouser the enormous bonus for 2008 - when the bank was going down the tubes.
Golf punters lost money when internet betting site golfinggods went into administration last year and O'Keeffe said yesterday: "When golfinggods were going down the tubes, we removed them from the IBAS register.
But while things were looking good on the scales, her 25-year marriage was going down the tubes.
TROUBLED ITV Sport digital channel faces going down the tubes unless the English League agrees to accept less money.
The truth is, if there's a global holocaust we're all going down the tubes.
I said at a recent meeting that the county's finances are going down the tubes and that I wanted to have a meeting in January to look at our finances.
As the country literally was going down the tubes this weekend the gobshite in chief himself was elec-tioneering in Donegal.
Debbie Reynolds, co-owner of Fortes Cafe, said: ``Barry Island isn't going down the tubes, and hopefully we can recreate a good atmosphere down here.