tube

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Related to go down the tube: go down the chute, gone down the tubes

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 ?
The club would go down the tubes at a great rate of knots.
I thought my career would never go down the tubes like other bands, but we made millions and I lost it all.
Without them our whole instructional program is just going to go down the tubes.
Besides being painted as an environmental villain, it also has seen its plans to occupy Playa Vista next year go down the tubes, forcing its 1,500 employees to remain scattered in six locations.
I realized that I had two choices: Either go down the tubes or do something about it,'' Pattee said.
Craig said: "I'm a staunch Hibs supporter but the same way I wouldn't want Rangers to go down the tubes, I don't want Hearts to go down the tubes, or anyone else.
Other small countries, with less natural resources, do things for themselves and are prospering while we go down the tubes.