reflex : Idioms & Phrases


accommodation reflex

  • noun reflex changes in the eyes that enable an object to be focused on the retina
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acquired reflex

  • noun an acquired response that is under the control of (conditional on the occurrence of) a stimulus
    acquired reflex; conditional response; conditional reaction; conditioned response; conditioned reaction; conditional reflex.
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babinski reflex

  • noun extension upward of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front; normal in infants under the age of two years but a sign of brain or spinal cord injury in older persons
    Babinski; Babinski sign.
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conditional reflex

  • noun an acquired response that is under the control of (conditional on the occurrence of) a stimulus
    acquired reflex; conditional response; conditional reaction; conditioned response; conditioned reaction; conditional reflex.
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conditioned reflex

  • noun an acquired response that is under the control of (conditional on the occurrence of) a stimulus
    acquired reflex; conditional response; conditional reaction; conditioned response; conditioned reaction; conditional reflex.
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defecation reflex

  • noun normal response to the presence of feces in the rectum
    defecation reflex.
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gag reflex

  • noun normal reflex consisting of retching; may be produced by touching the soft palate in the back of the mouth
    gag reflex.
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inborn reflex

  • noun an automatic instinctive unlearned reaction to a stimulus
    inborn reflex; innate reflex; reflex action; instinctive reflex; reflex response; physiological reaction; reflex.
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innate reflex

  • noun an automatic instinctive unlearned reaction to a stimulus
    inborn reflex; innate reflex; reflex action; instinctive reflex; reflex response; physiological reaction; reflex.
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instinctive reflex

  • noun an automatic instinctive unlearned reaction to a stimulus
    inborn reflex; innate reflex; reflex action; instinctive reflex; reflex response; physiological reaction; reflex.
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knee-jerk reflex

  • noun a reflex extension of the leg resulting from a sharp tap on the patellar tendon
    knee jerk; knee-jerk reflex.
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light reflex

  • noun reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
    myosis; miosis; light reflex.
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micturition reflex

  • noun relaxation of the urethral sphincter in response to increased pressure in the bladder
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moro reflex

  • noun a normal reflex of young infants; a sudden loud noise causes the child to stretch out the arms and flex the legs
    Moro reflex.
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myotactic reflex

  • noun reflex contraction of a muscle when an attached tendon is pulled; important in maintaining erect posture
    myotactic reflex.
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Patellar reflex

  • noun a reflex extension of the leg resulting from a sharp tap on the patellar tendon
    knee jerk; knee-jerk reflex.
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  • . See Knee jerk, under Knee.
Webster 1913

pharyngeal reflex

  • noun normal reflex consisting of retching; may be produced by touching the soft palate in the back of the mouth
    gag reflex.
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pilomotor reflex

  • noun reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation
    horripilation; goose bump; gooseflesh; goose pimple; goosebump; goose skin.
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plantar reflex

  • noun flexion of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front in persons over the age of 2 years; under 2 years the results should be extension of the toes (Babinski reflex)
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pupillary reflex

  • noun reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
    myosis; miosis; light reflex.
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rectal reflex

  • noun normal response to the presence of feces in the rectum
    defecation reflex.
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Reflex action

  • noun an automatic instinctive unlearned reaction to a stimulus
    inborn reflex; innate reflex; reflex action; instinctive reflex; reflex response; physiological reaction; reflex.
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  • (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.
Webster 1913

reflex angle

  • noun an angle greater than 180 degrees (but less than 360)
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reflex arc

  • noun the neural path of a reflex
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reflex camera

  • noun camera that allows the photographer to view and focus the exact scene being photographed
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reflex epilepsy

  • noun a form of epilepsy in which attacks are induced by peripheral stimulation
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Reflex nerve

  • (Physiol.), an excito-motory nerve. See Exito-motory.
Webster 1913

reflex response

  • noun an automatic instinctive unlearned reaction to a stimulus
    inborn reflex; innate reflex; reflex action; instinctive reflex; reflex response; physiological reaction; reflex.
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rooting reflex

  • noun reflex consisting of head-turning and sucking movements elicited in a normal infant by gently stroking the side of the mouth or cheek
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startle reflex

  • noun a normal reflex of young infants; a sudden loud noise causes the child to stretch out the arms and flex the legs
    Moro reflex.
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stretch reflex

  • noun reflex contraction of a muscle when an attached tendon is pulled; important in maintaining erect posture
    myotactic reflex.
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suckling reflex

  • noun reflex behavior in newborn mammals; includes finding and grasping the nipple in the mouth and sucking on it and swallowing the milk
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Tendon reflex

  • (Physiol.), a kind of reflex act in which a muscle is made to contract by a blow upon its tendon. Its absence is generally a sign of disease. See Knee jerk, under Knee.
Webster 1913

unconditioned reflex

  • noun an automatic instinctive unlearned reaction to a stimulus
    inborn reflex; innate reflex; reflex action; instinctive reflex; reflex response; physiological reaction; reflex.
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