[bab´kin] pressure by the examiner's thumbs on the palms of both hands of the infant results in opening of the infant's mouth; it is elicited in many newborn infants, normal and abnormal, except when lethargic or comatose.
Babkin,
Boris Petrovich, Russian neurologist, 1877-1950. Babkin reflex - congenital reflex of the newborn.