1. Tubes or channels that convey fluids, gases, or other substances through a system
The air ducts in the building distribute cool air throughout all rooms.
Os dutos de ar no edifício distribuem ar fresco por todas as salas.
2. In anatomy, tubes that carry secretions from glands to other parts of the body
The milk ducts in the breast transport milk during lactation.
Os dutos lácteos na mama transportam leite durante a lactação.
3. Channels or conduits in machinery or construction for routing pipes or cables
Electrical ducts run beneath the floor to hide wiring.
Os dutos elétricos correm sob o piso para esconder a fiação.