Synonyms: unconditioned reflex, inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response
Definition: an automatic instinctive unlearned reaction to a stimulus
Similar words: reaction, response
Definition: a bodily process occurring due to the effect of some antecedent stimulus or agent
Usage: a bad reaction to the medicine; his responses have slowed with age
Synonyms: automatic, reflex, reflexive
Definition: without volition or conscious control
Usage: the automatic shrinking of the pupils of the eye in strong light; a reflex knee jerk; sneezing is reflexive
Similar words: involuntary
Definition: controlled by the autonomic nervous system; without conscious control
Usage: involuntary muscles; gave an involuntary start