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Definitions for Reflex

[1] Physiology . noting or pertaining to an involuntary response to a stimulus, the nerve impulse from a receptor being transmitted inward to a nerve center that in turn transmits it outward to an effector.
[2] occurring in reaction; responsive.
[3] cast back; reflected, as light, color, etc.
[4] bent or turned back.
[5] designating a radio apparatus in which the same circuit or part performs two functions.
[6] Physiology . Also called reflex act . movement caused by a reflex response. Also called reflex action. the entire physiological process activating such movement.
[7] any automatic, unthinking, often habitual behavior or response.
[8] the reflection or image of an object, as exhibited by a mirror or the like.
[9] a reproduction, as if in a mirror.
[10] a copy; adaptation.
[11] reflected light, color, etc.
[12] Historical Linguistics . an element in a language, as a sound, that has developed from a corresponding element in an earlier form of the language: The ( ō) in “stone” is a reflex of Old English ā.
[13] a reflex radio receiver.
[14] a reflex camera.
[15] to subject to a reflex process.
[16] to bend, turn, or fold back.
[17] to arrange in a reflex system.
[18] an immediate involuntary response, esp one that is innate, such as coughing or removal of the hand from a hot surface, evoked by a given stimulus (as modifier ) a reflex action See also reflex arc
[19] a mechanical response to a particular situation, involving no conscious decision (as modifier ) a reflex response
[20] a reflection; an image produced by or as if by reflection
[21] a speech element derived from a corresponding form in an earlier state of the language "sorrow" is a reflex of Middle English "sorwe"
[22] maths (of an angle) between 180° and 360°
[23] (prenominal) turned, reflected, or bent backwards
[24] (tr) to bend, turn, or reflect backwards

Words related to Reflex

automatic, habitual, involuntary, knee-jerk, responsive, spontaneous, unthinking

Words nearby Reflex

reflectivity, reflectometer, reflector, reflectorize, reflet, reflex, reflex angle, reflex arc, reflex camera, reflex cough, reflex epilepsy

Origin of Reflex

1500–10; < Latin reflexus bent back, past participle of reflectere to reflect

Other words from Reflex

re·flex·ly , adverb
re·flex·ness , noun
mul·ti·re·flex , noun
sem·i·re·flex , noun

Word origin for Reflex

C16: from Latin reflexus bent back, from reflectere to reflect

Synonyms for Reflex

automatic, habitual, involuntary, knee-jerk, responsive, spontaneous, unthinking