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 ?
In these cases a ductless workstation or hood can be utilized to provide fume containment where and when it is needed, instead of being tied to a single exhaust hood on the wrong side of the room or building.
Whitebird Roger, 205 S 54th St Spc 99; install ductless heat pump and 1 indoor unit; $4,225.
Knights Coy Dean & Nicole Marie, 579 71St St; install ductless heat pump.
ProSpace ductless systems provide precise temperature control due to the portfolios capability for zone level control, centralized level control and building level control.
Mclean Johnathan & Jaclyn, 2444 Ranch Drive; Install A Ductless System; $6,400.
The $600 million industry looks poised to grow further, and part of that growth will depend on technologies that help users make the most out of both ducted and ductless technologies.
The systems, which will be used as part of an energy efficiency pilot program sponsored by the Northwest Energy Efficiency Alliance and other organizations, will measure the energy performance of ductless "mini-split" heat pumps in 120 homes throughout the Pacific Northwest.
Springfield Utility Board, 202 S 18th St; install new ductless heat pump system; $3,550.
Ductless fume hoods, also known as carbon-filtered enclosures, are self-contained, filtered laboratory enclosures that remove hazardous fumes, vapors and particles from the laboratory.
The Air Science USA Mobile, EDU, a mobile ductless fume hood, is suited for classroom demonstrations and industrial training and provides all around visibility.
Puget Sound Energy announced today that beginning immediately the utility is offering a $1,200 instant rebate to the first 400 PSE residential customers (and an $800 instant cash discount to all other residential customers) who install energy-efficient ductless heat pumps through the end of the year.
Tenders are invited for Air Conditioning Unit Replacement in the Electrical Room at the Water Treatment Plant: The scope of work includes install, test and place in satisfactory operation two new ductless split air condition systems for the main Electrical Room at the Attleboro Water Treatment Plant.