- any tube, canal, pipe, or conduit by which a fluid, air, or other substance is conducted or conveyed.
- Anatomy, Zoology. a tube, canal, or vessel conveying a body fluid, especially a glandular secretion or excretion.
- Botany. a cavity or vessel formed by elongated cells or by many cells.
- Electricity. a single enclosed runway for conductors or cables.
- Printing. (in a press) the reservoir for ink.
verb (used with object)
- to convey or channel by means of a duct or ducts: Heat from the oven is ducted to the outside.
- a tube, pipe, or canal by means of which a substance, esp a fluid or gas, is conveyed
- any bodily passage, esp one conveying secretions or excretions
- a narrow tubular cavity in plants, often containing resin or some other substance
- Also called: conduit a channel or pipe carrying electric cable or wires
- a passage through which air can flow, as in air conditioning
- the ink reservoir in a printing press
1640s, “course, direction,” from Latin ductus “a leading,” past participle of ducere “to lead” (see (n.)). Anatomical sense is from 1660s. Meaning “conduit, channel” is 1713; that of “air tube in a structure” is from 1884.
- A tubular bodily canal or passage, especially one for carrying a glandular secretion such as bile.
- A tube or tubelike structure through which something flows, especially a tube in the body for carrying a fluid secreted that is by a gland.