1. A military unit or group of troops that supports the main force or operates in a subordinate capacity
The secondary forces were positioned to flank the enemy's main defensive line.
As forças secundárias foram posicionadas para flanquear a linha defensiva principal do inimigo.
2. In physics, a force that is derived from or dependent upon a primary force
Friction acts as a secondary force in the motion of the object.
O atrito atua como uma força secundária no movimento do objeto.
3. A group, organization, or entity that plays a supporting role in a larger operation or system
The marketing department was considered a secondary force compared to sales.
O departamento de marketing foi considerado uma força secundária em comparação com vendas.