WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. 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
Word Usage
"If a person suffers from left lower extremity paralysis, an elevated left knee jerk reflex, left babinski sign? en EspaƱol"