duct

Etymology

Borrowed from Latin ductus (“leading, conducting”, noun), from dūcō (“to lead, conduct, draw”) + -tus (action noun suffix). Doublet of ductus and douit. Also via Medieval Latin ductus (“a conveyance of water; a channel”), which itself has the first mentioned etymology.

noun

1. a pipe, tube or canal which carries gas or liquid from one place to another
   1. an enclosure or channel for electrical cable runs, telephone cables, or other conductors
   2. (anatomy) a vessel for conveying lymph or glandular secretions such as tears or bile
   3. (botany) a tube or elongated cavity (such as a xylem vessel) for conveying water, sap, or air
2. (physics) a layer (as in the atmosphere or the ocean) which occurs under usually abnormal conditions and in which radio or sound waves are confined to a restricted path
3. (obsolete) guidance, direction
   […] otherwise to express His care and love to mankind, viz., in giving and consigning to them His written word for a rule and constant director of life, not leaving them to the duct of their own inclinations. 1650, Henry Hammond, Of the reasonableness of Christian religion

verb

1. to enclose in a duct
2. to channel something (such as a gas) or propagate something (such as radio waves) through a duct or series of ducts