WordNet
inborn reflex
n. an automatic instinctive unlearned reaction to a stimulus [syn: reflex, instinctive reflex, innate reflex, unconditioned reflex, physiological reaction]
Usage examples of "inborn reflex".
When the liquid finally filled the airlock, each of them spasmed with inborn reflex, eyes popping wide, mouths gaping and gasping, arms and legs flailing.