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Tube vs. Torus

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Tubenoun

Anything that is hollow and cylindrical in shape.

Torusnoun

(geometry) The standard representation of such a space in 3-dimensional Euclidean space: a surface or solid formed by rotating a closed curve, especially a circle, about a line which lies in the same plane but does not intersect it (e.g. like a ring doughnut).

Tubenoun

An approximately cylindrical container, usually with a crimped end and a screw top, used to contain and dispense semiliquid substances.

‘A tube of toothpaste.’;

Torusnoun

(topology) A topological space which is a product of two circles.

‘A 4-variable Karnaugh map can be thought of, topologically, as being a torus.’; ‘solid torus’;

Tubenoun

The London Underground railway system, originally referred to the lower level lines that ran in tubular tunnels as opposed to the higher ones which ran in rectangular section tunnels. (Often the tube.)

‘I took the tube to Waterloo and walked the rest of the way.’;

Torusnoun

A ring-shaped object, especially a large ring-shaped chamber used in physical research.

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Tubenoun

A tin can containing beer (or other beverage?).topic=Australian English

Torusnoun

(architecture) A large convex molding, typically semicircular in cross section, which commonly projects at the base of a column and above the plinth.

Tubenoun

(surfing) A wave which pitches forward when breaking, creating a hollow space inside.

Torusnoun

(anatomy) A rounded ridge of bone or muscle, especially one on the occipital bone.

Tubenoun

A television. Also, derisively, boob tube. British: telly.

‘Are you just going to sit around all day and watch the tube?’;

Torusnoun

(botany) The end of the peduncle or flower stalk to which the floral parts (or in the Asteraceae, the florets of a flower head) are attached.

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Tubenoun

(Scotland) Idiot.

Torusnoun

(botany) The thickening of a membrane closing a wood-cell pit (as of gymnosperm tracheids) having the secondary cell wall arched over the pit cavity.

Tubeverb

To supply with, or enclose in, a tube.

‘She tubes lipstick in the cosmetics factory.’;

Torusnoun

A large molding used in the bases of columns. Its profile is semicircular. See Illust. of Molding.

Tubeverb

To ride an inner tube.

‘They tubed down the Colorado River.’;

Torusnoun

One of the ventral parapodia of tubicolous annelids. It usually has the form of an oblong thickening or elevation of the integument with rows of uncini or hooks along the center. See Illust. under Tubicolæ.

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Tubeverb

To intubate.

‘The patient was tubed.’;

Torusnoun

The receptacle, or part of the flower on which the carpels stand.

Tubenoun

A hollow cylinder, of any material, used for the conveyance of fluids, and for various other purposes; a pipe.

Torusnoun

The surface described by the circumference of a circle revolving about a straight line in its own plane.

Tubenoun

A telescope.

Torusnoun

a ring-shaped surface generated by rotating a circle around an axis that does not intersect the circle

Tubenoun

A vessel in animal bodies or plants, which conveys a fluid or other substance.

Torusnoun

commonly the lowest molding at the base of a column

Tubenoun

The narrow, hollow part of a gamopetalous corolla.

Torus

In geometry, a torus (plural tori, colloquially donut) is a surface of revolution generated by revolving a circle in three-dimensional space about an axis that is coplanar with the circle. If the axis of revolution does not touch the circle, the surface has a ring shape and is called a torus of revolution.

Tubenoun

A priming tube, or friction primer. See under Priming, and Friction.

Tubenoun

A small pipe forming part of the boiler, containing water and surrounded by flame or hot gases, or else surrounded by water and forming a flue for the gases to pass through.

Tubenoun

A more or less cylindrical, and often spiral, case secreted or constructed by many annelids, crustaceans, insects, and other animals, for protection or concealment. See Illust. of Tubeworm.

Tubenoun

A tunnel for a tube railway; also (Colloq.), a tube railway; a subway.

Tubeverb

To furnish with a tube; as, to tube a well.

Tubenoun

conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases

Tubenoun

electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

Tubenoun

a hollow cylindrical shape

Tubenoun

(anatomy) any hollow cylindrical body structure

Tubenoun

electric underground railway

Tubeverb

provide with a tube or insert a tube into

Tubeverb

convey in a tube;

‘inside Paris, they used to tube mail’;

Tubeverb

ride or float on an inflated tube;

‘We tubed down the river on a hot summer day’;

Tubeverb

place or enclose in a tube

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