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duct

Wikipedia Summary

The word duct is derived from the Latin word for led/leading. It may refer to: Duct (anatomy), various ducts in anatomy and physiology Tear duct, which carry tears to the eyes Duct (HVAC), for transfer of air between spaces in a structure Duct tape, a kind of adhesive tape Ducted fan, motor for aircraft Electrical bus duct, a metal enclosure for busbars Duct (industrial exhaust), industrial exhaust duct system designed for low pressure-pneumatic convey of gas, fumes, dusts, shavings, and other pollutants from works space to atmosphere after cleaning and removal of contaminants Atmospheric duct, a horizontal layer in the lower atmosphere in which the vertical refractive index gradients are such that radio signals (a) are guided or ducted, (b) tend to follow the curvature of the Earth, and (c) experience less attenuation in the ducts than they would if the ducts were not present Tropospheric ducting, a type of radio propagation in the troposphere that allows signals to travel unusually long distances Earth–ionosphere waveguide, a type of atmospheric duct Surface duct, a sound propagation phenomenon at sea Duct Publishing, an imprint of the German group VDM Publishing devoted to the reproduction of Wikipedia content Dispatchable Unit Control Table (DUCT) in z/Architecture Flexible Ducting.
Related Codes (2)
Code
Description
Billable
Details
D31.5Benign neoplasm of lacrimal gland and duct
Q38.4Congenital malformations of salivary glands and ducts

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