reflex
English Thesaurus
1. an automatic instinctive unlearned reaction to a stimulus (noun.act)
hypernym | : | reaction, response, |
definition | : | a bodily process occurring due to the effect of some antecedent stimulus or agent (noun.act) |
hyponym | : | accommodation reflex, |
definition | : | reflex changes in the eyes that enable an object to be focused on the retina (noun.act) |
hyponym | : | babinski, babinski reflex, babinski sign, |
definition | : | 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 (noun.act) |
hyponym | : | blush, flush, |
definition | : | sudden reddening of the face (as from embarrassment or guilt or shame or modesty) (noun.act) |
hyponym | : | oscitance, oscitancy, yawn, yawning, |
definition | : | an involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom (noun.act) |
hyponym | : | gulp, gulping, |
definition | : | a spasmodic reflex of the throat made as if in swallowing (noun.act) |
hyponym | : | light reflex, miosis, myosis, pupillary reflex, |
definition | : | reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller (noun.act) |
hyponym | : | mydriasis, |
definition | : | reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs (noun.act) |
hyponym | : | micturition reflex, |
definition | : | relaxation of the urethral sphincter in response to increased pressure in the bladder (noun.act) |
hyponym | : | gag reflex, pharyngeal reflex, |
definition | : | normal reflex consisting of retching; may be produced by touching the soft palate in the back of the mouth (noun.act) |
hyponym | : | plantar reflex, |
definition | : | 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) (noun.act) |
hyponym | : | rooting reflex, |
definition | : | reflex consisting of head-turning and sucking movements elicited in a normal infant by gently stroking the side of the mouth or cheek (noun.act) |
hyponym | : | jump, start, startle, |
definition | : | a sudden involuntary movement (noun.act) |
hyponym | : | myotactic reflex, stretch reflex, |
definition | : | reflex contraction of a muscle when an attached tendon is pulled; important in maintaining erect posture (noun.act) |
hyponym | : | suckling reflex, |
definition | : | reflex behavior in newborn mammals; includes finding and grasping the nipple in the mouth and sucking on it and swallowing the milk (noun.act) |
hyponym | : | shake, shiver, tremble, |
definition | : | a reflex motion caused by cold or fear or excitement (noun.act) |
hyponym | : | sneeze, sneezing, sternutation, |
definition | : | a symptom consisting of the involuntary expulsion of air from the nose (noun.state) |
hyponym | : | hiccough, hiccup, singultus, |
definition | : | (usually plural) the state of having reflex spasms of the diaphragm accompanied by a rapid closure of the glottis producing an audible sound; sometimes a symptom of indigestion (noun.state) |
2. without volition or conscious control (adj.all)
similar | : | involuntary, |
definition | : | controlled by the autonomic nervous system; without conscious control (adj.all) |
domain category | : | physiology, |
definition | : | the branch of the biological sciences dealing with the functioning of organisms (noun.cognition) |
3. an automatic instinctive unlearned reaction to a stimulus (noun.act)
4. without volition or conscious control (adj.all)
5. an automatic instinctive unlearned reaction to a stimulus (noun.act)
6. without volition or conscious control (adj.all)
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