defecation reflex
- noun
- /ˌdɛfɪˈkeɪʃən rɪˈflɛks/
- Formal
- The defecation reflex is triggered when the rectum becomes distended with feces.
Examples
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In infants, the defecation reflex is often triggered by feeding.
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Training young children often involves teaching them to recognize the defecation reflex.
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In some medical conditions, the defecation reflex may be weakened or absent.
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The defecation reflex is a crucial bodily function.
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The defecation reflex is an essential response that signals the body to expel feces.
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When pressure builds up in the rectum, the defecation reflex helps remind us to use the restroom.
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After eating, the body often initiates the defecation reflex to help with digestion.
Synonyms
A natural body response when stool in the rectum makes you want to use the toilet
Surface Forms
Morphology
The compound is directly compositional: 'defecation' (expelling solid waste) combined with 'reflex' (automatic bodily response) yields an automatic response that stimulates defecation. Although somewhat technical in register, the meaning follows standard noun+noun composition and is cross-linguistically transparent, so a B1 learner who knows both constituents can infer the MWE's meaning.
Etymology
Defecation reflex is the body's automatic signal when the lower part of the bowel fills with stool. Defecation means passing stool and reflex means a quick automatic action, so the term refers to the 'urge' to push out poop that is not under your control.