Definition of: reflex

(rē′fleks) adjective
1. Turned or thrown backward; reflected, as light.
2. Physiol. Of, pertaining to, or produced by a reflex.
3. Turned back upon itself or in the direction whence it came: reflex motion.
4. Bent back; reflexed.
5. Telecom. Designating a radio receiving circuit in which a single vacuum tube serves for the simultaneous amplification of two different frequencies.
—noun
1. Reflection, or an image produced by reflection, as from a mirror or like surface.
2. An image or copy; also, an adaptation from another language or dialect, as of a word.
3. Light reflected from an illuminated surface to a shady one.
4. Physiol. An involuntary movement or action produced by the transmission of an afferent impulse to a nerve center and its reflection thence as an efferent impulse, as in winking when the eye is threatened: also reflex action.
—v.t. (ri·fleks′) To bend back; turn back or reflect. [<L reflexus reflected, pp. of reflectere. See REFLECT.]