defecation reflex

Noun
  1. Normal response to the presence of feces in the rectum (synset 100812882)
    is a type of: inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response, unconditioned reflex - an automatic instinctive unlearned reaction to a stimulus
    same as: rectal reflex

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