Babinski's reflex

or Babinski reflex

[ buh-bin-skeez ]

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.

Word History and Origins

Origin of Babinski's reflex¹

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