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entity go
that which is perceived or known or inferred to have its own distinct existence (living or nonliving)

physical entity go
an entity that has physical existence

process, physical process go
a sustained phenomenon or one marked by gradual changes through a series of states

organic process, biological process go
a process occurring in living organisms

activity, bodily process, body process, bodily function go
an organic process that takes place in the body

reaction, response go
a bodily process occurring due to the effect of some antecedent stimulus or agent

reflex, reflex response, reflex action, instinctive reflex, innate reflex, inborn reflex, unconditioned reflex, physiological reaction
an automatic instinctive unlearned reaction to a stimulus

noun.act

25 Subcategories

accommodation reflex go
reflex changes in the eyes that enable an object to be focused on the retina
Babinski, Babinski reflex, Babinski sign go
extension upward of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front
belch, belching, burp, burping, eructation go
a reflex that expels gas noisily from the stomach through the mouth
blink, eye blink, blinking, wink, winking, nictitation, nictation go
a reflex that closes and opens the eyes rapidly
blush, flush go
sudden reddening of the face (as from embarrassment or guilt or shame or modesty)
vomit, vomiting, emesis, regurgitation, disgorgement, puking go
the reflex act of ejecting the contents of the stomach through the mouth
defecation reflex, rectal reflex go
normal response to the presence of feces in the rectum
yawn, yawning, oscitance, oscitancy go
an involuntary intake of breath through a wide open mouth
electric shock, electrical shock, shock go
a reflex response to the passage of electric current through the body
wind, fart, farting, flatus, breaking wind go
a reflex that expels intestinal gas through the anus
gulp, gulping go
a spasmodic reflex of the throat made as if in swallowing
knee jerk, knee-jerk reflex, patellar reflex go
a reflex extension of the leg resulting from a sharp tap on the patellar tendon
light reflex, pupillary reflex, miosis, myosis go
reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
mydriasis go
reflex pupillary dilation as a muscle pulls the iris outward
micturition reflex go
relaxation of the urethral sphincter in response to increased pressure in the bladder
pharyngeal reflex, gag reflex go
normal reflex consisting of retching
pilomotor reflex, gooseflesh, goose bump, goosebump, goose pimple, goose skin, horripilation go
reflex erection of hairs of the skin in response to cold or emotional stress or skin irritation
plantar reflex go
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
rooting reflex go
reflex consisting of head-turning and sucking movements elicited in a normal infant by gently stroking the side of the mouth or cheek
jump, start, startle go
a sudden involuntary movement
stretch reflex, myotactic reflex go
reflex contraction of a muscle when an attached tendon is pulled
suckling reflex go
reflex behavior in newborn mammals
shake, tremble, shiver go
a reflex motion caused by cold or fear or excitement
sneeze, sneezing, sternutation go
a symptom consisting of the involuntary expulsion of air from the nose
hiccup, hiccough, singultus go
(usually plural) the state of having reflex spasms of the diaphragm accompanied by a rapid closure of the glottis producing an audible sound