Babinski's reflex

American  

[buh-bin-skeez] / bəˈbɪn skiz /

Or Babinski reflex

noun

1. a reflex extension of the great toe with flexion of the other toes, evoked by stroking the sole of the foot: normal in infants but otherwise denoting central nervous system damage.

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Etymology

Origin of Babinski's reflex

Named after J. F. F. Babinski (died 1932), French neurologist