duct


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duct

1. any bodily passage, esp one conveying secretions or excretions
2. a narrow tubular cavity in plants, often containing resin or some other substance
3. a channel or pipe carrying electric cable or wires

Duct

A nonmetallic or metallic tube for housing wires or cables, may be underground or embedded in concrete floor slabs; a duct usually fabricated of metal, used to transfer air from one location to another.

duct

[dəkt]
(anatomy)
An enclosed tubular channel for conducting a glandular secretion or other body fluid.
(communications)
An enclosed runway for cables.
(geophysics)
The space between two air layers, or between an air layer and the earth's surface, in which microwave beams are trapped in ducting. Also known as radio duct; tropospheric duct.
(mechanical engineering)
A fluid flow passage which may range from a few inches in diameter to many feet in rectangular cross section, usually constructed of galvanized steel, aluminum, or copper, through which air flows in a ventilation system or to a compressor, supercharger, or other equipment at speeds ranging to thousands of feet per minute.

duct

1. ,See air duct.
2. In electric systems, a metallic or nonmetallic tube, (usually circular, oval, rectangular, or octagonal) for housing wires or cables; may be underground or embedded in concrete floor slabs.

duct

A thin-wall tube installed in aircraft air-conditioning and heating systems to carry heated or cooled air for distribution to various aircraft locations.
References in periodicals archive ?
Bile duct confluence: anatomic variations and its classification.
Even when straight, the roughness of the flexible duct can cause errors in velocity pressure (VP) sensor readings by the boxes flow sensor, as shown in Figure 1.
Several variants of salivary duct carcinoma such as sarcomatoid variant, low grade or mucin rich salivary duct carcinoma have been described.
Dacryocystitis is inflammation of lacrimal sac and can occur due to trauma and/or infection, leading to blockage of duct system (Slatter, 2003).
Chaiteerakij noted that it remains to be seen whether aspirin is safe and cost-effective for the purpose of protecting against bile duct cancer.
The gallbladder develops during the fifth to sixth week of gestation, when the connection between the hepatic diverticulum and the foregut (duodenum) narrows, forming the bile duct.
The most popular product over the past two years has been the fire-rated duct system while the company's GI/SS/MS ducts and attenuators are also in great demand.
His past medical history showed that he had undergone cholecystectomy, choledocholithotomy, and Rouxen-Y choledochojejunostomy reconstruction 5 years previously because of an intrahepatic bile duct stone.
Though the empirical data and ASHRAE Handbook tables are useful for design purposes, a numerical simulation approach to predict HVAC duct attenuation is desirable and is the subject of this paper.
The BDIs in these 20 cases were as follows: 6 cases of common BDI (4 cases of lateral injury and 2 circumferential injury), 2 of common hepatic duct injury, 1 of right hepatic duct injury, 1 of accessory right hepatic duct, 1 of aberrant BDI, 1 of biliary stricture, 1 of biliary duct perforation, 3 of hemobilia, and 4 of bile leakage.
Cook Medical's OHNS division is focused on developing minimally invasive treatment options, like the Advance Salivary Duct Balloon Catheter Set.
Professional air duct cleaning can remove these types of contaminants and improve indoor air quality -- quickly and effectively, the company promises.