1. The unobstructed and efficient flow of something (blood, traffic, goods, information, etc.) without interruption or congestion
The city implemented new traffic management systems to ensure smooth circulation during rush hours.
A cidade implementou novos sistemas de gestão de trânsito para garantir uma circulação suave durante as horas de pico.
2. In medical context, the proper and unimpeded flow of blood through the cardiovascular system
Regular exercise promotes smooth circulation and heart health.
O exercício regular promove uma circulação suave e a saúde do coração.