A surgical procedure where a needle or catheter is inserted into the intestines, often used to inject fluids or introduce contrast for medical imaging.
From Greek 'enteron' (intestine) and 'klisis' (pricking or stabbing). This medical term emerged in the late 1800s as doctors needed language for new diagnostic techniques using X-rays and injections.
Before modern imaging, doctors literally had to inject dye into your intestines to see what was happening inside—this word describes one of medicine's earliest peek-inside techniques!
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