1. (noun) flexion of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front in persons over the age of 2 years; under 2 years the results should be extension of the toes (Babinski reflex)

• inborn reflex
• innate reflex
• instinctive reflex
• physiological reaction
• reflex
• reflex action
• reflex response
• unconditioned reflex