Reflex Re"flex (r?"fl?ks), a. [L. reflexus, p. p. of reflectere: cf. F. r['e]flexe. See {Reflect}.] 1. Directed back; attended by reflection; retroactive; introspective. [1913 Webster]

The reflex act of the soul, or the turning of the intellectual eye inward upon its own actions. --Sir M. Hale. [1913 Webster]

2. Produced in reaction, in resistance, or in return. [1913 Webster]

3. (Physiol.) Of, pertaining to, or produced by, stimulus or excitation without the necessary intervention of consciousness. [1913 Webster]

{Reflex action} (Physiol.), any action performed involuntarily in consequence of an impulse or impression transmitted along afferent nerves to a nerve center, from which it is reflected to an efferent nerve, and so calls into action certain muscles, organs, or cells.

{Reflex nerve} (Physiol.), an excito-motory nerve. See {Exito-motory}. [1913 Webster]

The Collaborative International Dictionary of English. 2000.