What is another word for reflex action?
Pronunciation: [ɹˈiːflɛks ˈakʃən] (IPA) 
Reflex action is a term that refers to an involuntary physical response to a stimulus. It is a natural response that occurs without any conscious effort or decision-making on the part of the person. There are many synonyms to describe this type of action, including automatic response, instinctive reaction, knee-jerk reaction, spontaneous reflex, involuntary twitch, and reflexive movement. These terms all describe the same phenomenon and can be used interchangeably to describe the involuntary reactions that occur in our bodies. Whether it's smiling when we see a loved one or flinching when we hear a loud noise, reflex actions are an important part of our biology and help us to respond quickly in potentially dangerous situations.
