1. a pulley-like anatomical structure, especially the groove in a bone through which a tendon passes
Usage: anatomy; medical

Examples

• The trochlea of the humerus forms part of the elbow joint.
• The superior oblique muscle passes through the trochlea before inserting into the eye.
• Damage to the trochlea can affect tendon movement.
• The anatomist pointed out the trochlea on the bone specimen.
• The trochlea acts like a pulley to redirect the muscle’s force.
• X-rays revealed a fracture near the trochlea of the femur.