1. A road of lesser importance than a main road or highway, typically connecting smaller towns or rural areas
The accident occurred on a secondary road outside the city.
O acidente ocorreu em uma via secundária fora da cidade.
2. In anatomy or physiology, an alternative or subordinate pathway or route
The virus can spread through a secondary route if the primary defense is compromised.
O vírus pode se espalhar através de uma via secundária se a defesa primária for comprometida.