Definition

1. Noun:
   • A pipe, tube, or channel for conveying a fluid or air: A duct is an enclosed passage or conduit designed to carry a liquid, gas, or other flowing substance.
   • A tube in the body for conveying a secretion: In anatomy, a duct is a bodily tube or passage that transports a specific secretion, such as tears or bile, from a gland.
   • A tube formed by elongated plant cells: In botany, a duct is a continuous tube formed by a row of elongated cells without intervening end walls, often for transporting sap.

Usage and Examples

• General Use (Pipe/Channel):

  • The air conditioning system uses a network of ducts to distribute cool air throughout the building.
  • Workers installed a new ventilation duct above the ceiling.

• Anatomical Use (Bodily Tube):

  • A blocked tear duct can cause excessive watering of the eye.
  • The surgeon carefully repaired the bile duct during the operation.

• Botanical Use (Plant Tube):

  • Water and minerals are transported from the roots to the leaves through specialized ducts in the plant's stem.

Advanced Usage

• "Ductwork": Refers to a system of ducts, especially in a building for heating, ventilation, and air conditioning (HVAC).

  • The old ductwork in the house was inefficient and needed replacement.

• "Ductile" (adj): Describes a material, like some metals, that can be drawn out into a thin wire or hammered thin without breaking. This is related to the concept of something being capable of being led or drawn, akin to being channeled.

  • Copper is a highly ductile metal.

Variants and Related Words

• Ducting (n): Material used to make ducts or the system of ducts itself.

  • Flexible ducting is often used for connecting vents to the main system.

• Ductless (adj): Describing a system that operates without ducts.

  • We installed a ductless mini-split air conditioner in the room.

Synonyms

• Conduit: A channel for conveying fluids or protecting cables.
• Tube: A long, hollow cylinder.
• Channel: A passage for water or other fluids.
• Vessel (in anatomy): A duct or canal holding or conveying blood or other fluid.

Related Phrases and Compounds

• Duct tape: A strong cloth-backed adhesive tape, originally designed for sealing heating and air conditioning ducts.

  • He used duct tape to temporarily patch the hole.

• Lacrimal duct: The specific tear duct in the eye.

• Bile duct: The duct that conveys bile from the liver and gallbladder to the duodenum.
• Pancreatic duct: The duct connecting the pancreas to the common bile duct.

Noun

1. an enclosed conduit for a fluid
2. a continuous tube formed by a row of elongated cells lacking intervening end walls
3. a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance
   • the tear duct was obstructed
   • the alimentary canal
   • poison is released through a channel in the snake's fangs