(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, Syn.Babinski reflex, Babinski sign
n. [ From Dr. Babbington. ] (Min.) A mineral occurring in triclinic crystals approaching pyroxene in angle, and of a greenish black color. It is a silicate of iron, manganese, and lime. [ 1913 Webster ]