1. The process of removing liquid from an area, especially water or fluid
The drainage system in the city prevents flooding during heavy rains.
O sistema de drenagem da cidade previne inundações durante chuvas fortes.
2. A system of pipes, channels, or ditches used to remove excess water or liquid
The agricultural field requires proper drainage to maintain soil quality.
O campo agrícola requer drenagem adequada para manter a qualidade do solo.
3. In medicine, the removal of fluids from a body cavity or wound
The surgeon inserted a drainage tube to prevent fluid accumulation.
O cirurgião inseriu um tubo de drenagem para evitar acúmulo de líquido.