Definitions for: Reflex
[n] an automatic instinctive unlearned reaction to a stimulus
Webster (1913) Definition: 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;
The reflex act of the soul, or the turning of the
intellectual eye inward upon its own actions. --Sir
2. Produced in reaction, in resistance, or in return.
3. (Physiol.) Of, pertaining to, or produced by, stimulus or
excitation without the necessary intervention of
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
Re"flex (r?"fl?ks; formerly r?*fl?ks"), n. [L. reflexus
a bending back. See Reflect.]
1. Reflection; the light reflected from an illuminated
surface to one in shade.
Yon gray is not the morning's eye, 'Tis but the pale
reflex of Cynthia's brow. --Shak.
On the depths of death there swims The reflex of a
human face. --Tennyson.
2. (Physiol.) An involuntary movement produced by reflex
Patellar reflex. See Knee jerk, under Knee.
Re*flex" (r?*fl?ks"), v. t. [L. reflexus, p. p. of
reflectere. See Reflect.]
1. To reflect. [Obs.] --Shak.
2. To bend back; to turn back. --J. Gregory.
Synonyms: inborn reflex, innate reflex, instinctive reflex, physiological reaction, unconditioned reflex
See Also: accommodation reflex, Babinski, Babinski reflex, Babinski sign, belch, belching, blink, blinking, blush, breaking wind, burp, burping, defecation reflex, disgorgement, electric shock, electrical shock, emesis, eructation, eye blink, fart, farting, flatus, flush, gag reflex, goose bump, goose pimple, goose skin, gooseflesh, gulp, gulping, hiccough, hiccup, horripilation, jump, knee jerk, knee-jerk reflex, light reflex, micturition reflex, miosis, mydriasis, myosis, myotactic reflex, nictation, nictitation, oscitance, oscitancy, patellar reflex, pharyngeal reflex, pilomotor reflex, plantar reflex, puking, pupillary reflex, reaction, rectal reflex, regurgitation, response, rooting reflex, shake, shiver, shock, singultus, sneeze, sneezing, start, startle, sternutation, stretch reflex, suckling reflex, tremble, vomit, vomiting, wind, wink, winking, yawn, yawning
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Famous Quotes Containing Reflex:
The theatre is the involuntary reflex of the ideas of the crowd.-- Sarah Bernhardt (French Actress)
The mental act of sensation which issues in reflex movement is so simple as to defy analysis.-- Samuel Alexander (Australian Philosopher)
Rational behavior requires theory. Reactive behavior requires only reflex action.-- W. Edwards Deming (American Scientist)
Repetition of the same thought or physical action develops into a habit which, repeated frequently enough, becomes an automatic reflex. -- Norman Vincent Peale (American Clergyman)
The racing driver's mind has to have the ability to have amazing anticipation, coordination, and reflex. Because of the speed the car goes.-- Emerson Fittipaldi (Brazilian Celebrity)
Politics is the reflex of the business and industrial world.-- Emma Goldman (Lithuanian Activist)
It's like a prehistoric reflex, you know, going out and getting the meat and bringing it back to the cave. You feel you're supposed to make it better, but more than likely she's asking you to tell her how you feel.-- Fred Ward (American Actor)
An orgasm is just a reflex, like a sneeze.-- Ruth Westheimer (American Psychologist)
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