Babinski reflex

Ba·bin·ski reflex  (b-bnsk) also Ba·bin·ski's reflex (-skz)

n.

An extension of the great toe, sometimes with fanning of the other toes, in response to stroking of the sole of the foot. It is a normal reflex in infants, but it is usually associated with a disturbance of the pyramidal tract in children and adults. Also called Babinski sign, Babinski's sign.

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[After Joseph François Felix Babinski (1857-1932), French neurologist.]

Thesaurus

Noun

1.

Babinski reflex - 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 Babinski, Babinski sign inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response, unconditioned reflex - an automatic instinctive unlearned reaction to a stimulus