- 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.
- occurring in reaction; responsive.
- cast back; reflected, as light, color, etc.
- bent or turned back.
- designating a radio apparatus in which the same circuit or part performs two functions.
- Also called reflex act.movement caused by a reflex response.
- Also called reflex action.the entire physiological process activating such movement.
- any automatic, unthinking, often habitual behavior or response.
- the reflection or image of an object, as exhibited by a mirror or the like.
- a reproduction, as if in a mirror.
- a copy; adaptation.
- reflected light, color, etc.
- 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.
- a reflex radio receiver.
- a reflex camera.
- to subject to a reflex process.
- to bend, turn, or fold back.
- to arrange in a reflex system.
Origin of reflex
Examples from the Web for reflex
Worry has become as automatic a reflex as breathing in your sleep.The Israeli App Red Alert Saves Lives—but It Just Might Drive You Nuts
July 15, 2014
Then came the moment when a reflex born of a lifetime with a badge caused him to check the door window at the end of the car.My Patrol With the NYPD’s Bill Bratton
March 14, 2014
He is quite a bundle of stimulus and reflex, with no reflection.The Real Wolf of Wall Street: Jordan Belfort’s Vulgar Memoirs
December 20, 2013
The reflex is to say China is going to take us to the cleaners, right?Sunday Q&A: Josef Joffe on the Myth of American Decline
November 17, 2013
Tears were a reflex response of the lachrymal glands to these events.Why Do We Cry?
January 10, 2013
But pride in things wrought is no reflex of a completed task.
His hand was still resting on it so he picked it up by reflex.Arm of the Law
But I may also neglect this reflex standard and absolve me to myself.Essays, First Series
Ralph Waldo Emerson
A reflex of the child's old joy in the Festivals glowed in his soul.Dreamers of the Ghetto
Some of our acts were reflex, some were chiefly instinctive, and some were volitional.The Mind and Its Education
George Herbert Betts
- 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
- a mechanical response to a particular situation, involving no conscious decision
- (as modifier)a reflex response
- a reflection; an image produced by or as if by reflection
- a speech element derived from a corresponding form in an earlier state of the language"sorrow" is a reflex of Middle English "sorwe"
- maths (of an angle) between 180° and 360°
- (prenominal) turned, reflected, or bent backwards
- (tr) to bend, turn, or reflect backwards
Word Origin and History for reflex
c.1500, "reflection of light," from verb reflex meaning "refract, deflect" (late 14c.), from Late Latin reflexus "a bending back," noun use of past participle of reflectere (see reflection). Meaning "involuntary nerve stimulation" first recorded 1877, from reflex action (1833).
- An involuntary physiological response to a stimulus.
- An unlearned or instinctive response to a stimulus.
- Something, such as light or heat, that is reflected.
- Being an involuntary action or response, such as a sneeze, blink, or hiccup.
- Bent, turned, or thrown back; reflected.
- To cause to undergo a reflex process.
- To reflect.
- An involuntary physiological response to a stimulus, as the withdrawal of a body part from burning heat.
- An unlearned or instinctive response to a stimulus. Also called unconditioned response See more at classical conditioning.
An action or movement not controlled by conscious thought. A reflex may be anything from a hiccup to the involuntary response of a body part, such as the action that occurs in the knee-jerk reflex.