1. Describes a pronoun referring to the same person or thing as another noun or pronoun in the same sentence. The reflexive pronouns in English end in "-self" or "-selves," e.g. "myself," "yourself," "ourselves."
2. Describes a verb that takes a reflexive pronoun as an object, thereby indicating an action that the subject does to or for itself: "He admired himself".
3. Relating to or being the product of a reflex;such as, "a reflexive action in response to the explosive sound."
4. Without thinking; an automatic and involuntary or unthinking.
5. Describes a relation between pairs of logical objects or numbers that are the same or of the same size.