1. a structural framework that supports or is contained within a larger frame
Usage: automotive; engineering
2. a secondary frame used to mount components or provide additional structural support
Usage: technical

Examples

• The car’s subframe was damaged in the collision.
• Engineers designed a lightweight subframe to reduce vehicle weight.
• The engine mounts attach directly to the subframe.
• A reinforced subframe improves the vehicle’s structural integrity.
• The mechanic had to remove the subframe to access the transmission.
• Modern cars use aluminum subframes for better fuel efficiency.