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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.
adjective. noun. The definition of reflex is something done automatically without thinking about it, or something reflected back. Hiccuping is an example of something that would be described as a reflex action. Reflex is defined as something that you do or think automatically, or a reflection.When something is flying at your head and you instinctively close your eyes without thinking about it, this is an example of a reflex.eflex is defined as something that you do or think automatically, or a reflection. When something is flying at your head and you instinctively close your eyes without thinking about it, this is an example of a reflex.