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Reflexively definition, (of a verb) taking a subject and object with identical referents, as shave in I shave myself. See more.
A reflex is an automatic response to a stimulus. Humans use reflex  actions in only some of their behaviour, for example controlling  the eye's pupil size. Simple reflexes. â¦ Simple reflexes produce  rapid involuntary responses to a stimulus. reflex is a quick involuntary action. There are five steps to a reflex: the stimulus occurs, the sensory neurons sense the stimulus, it sends a message to your spinal cord (â¦ it doesn't reach the brain right then), the spinal cord sends a message to your motor neurons, and the reflex occurs.