Definition of reflex

• a. - Directed back; attended by reflection; retroactive; introspective.
• a. - Produced in reaction, in resistance, or in return.
• a. - Of, pertaining to, or produced by, stimulus or excitation without the necessary intervention of consciousness.
• n. - Reflection; the light reflected from an illuminated surface to one in shade.
• n. - An involuntary movement produced by reflex action.
• v. t. - To reflect.
• v. t. - To bend back; to turn back.