Babinski's reflex: Meaning and Definition of

Ba•bin'ski's re'flex

Pronunciation: (bu-bin'skēz), [key]
  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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.