Babinski sign

Từ điển WordNet v3.1 - WordNet Dictionary

noun

extension upward of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front;
normal in infants under the age of two years but a sign of brain or spinal cord injury in older persons
• Syn:
Babinski, Babinski reflex
• Hypernyms:
reflex, reflex response, reflex action, instinctive reflex, innate reflex,
inborn reflex, unconditioned reflex, physiological reaction