types:
aqueduct
a conduit that resembles a bridge but carries water over a valley
duct
an enclosed conduit for a fluid
flue
a conduit to carry off smoke
tube,
tubing
conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
waterspout
a channel through which water is discharged (especially one used for drainage from the gutters of a roof)
air-intake
a duct that admits air to be mixed with fuel
cannula
a small flexible tube inserted into a body cavity for draining off fluid or introducing medication
catheter
a thin flexible tube inserted into the body to permit introduction or withdrawal of fluids or to keep the passageway open
chimney
a vertical flue that provides a path through which smoke from a fire is carried away through the wall or roof of a building
chimneystack
the part of the chimney that is above the roof; usually has several flues
coil
tubing that is wound in a spiral
chromatography column,
column
a vertical glass tube used in column chromatography; a mixture is poured in the top and washed through a stationary substance where components of the mixture are adsorbed selectively to form colored bands
drain
tube inserted into a body cavity (as during surgery) to remove unwanted material
hose,
hosepipe
a flexible pipe for conveying a liquid or gas
inner tube
an inflatable rubber tube that fits inside the casing of a pneumatic tire
mouthpiece
the tube of a pipe or cigarette holder that a smoker holds in the mouth
pea shooter
a straight narrow tube through which pellets (as dried peas) can be blown at a target
pipage,
pipe,
piping
a long tube made of metal or plastic that is used to carry water or oil or gas etc.
pipe,
tobacco pipe
a tube with a small bowl at one end; used for smoking tobacco
silencer
short tube attached to the muzzle of a gun that deadens the sound of firing
siphon,
syphon
a tube running from the liquid in a vessel to a lower level outside the vessel so that atmospheric pressure forces the liquid through the tube
speaking tube
a tube for conveying the sound of a voice from one room to another
stem
the tube of a tobacco pipe
stent
a slender tube inserted inside a tubular body part (as a blood vessel) to provide support during and after surgical anastomosis
torpedo tube
a tube near the waterline of a vessel through which a torpedo is fired
venturi
a tube with a constriction; used to control fluid flow (as in the air inlet of a carburetor)
well point,
wellpoint
a perforated tube driven into the ground to collect water from the surrounding area