A practitioner or specialist who administers or recommends colyum treatments or enema procedures.
From 'colyum' with the agent suffix '-ist', following the pattern of 'dentist' or 'florist'. This term would have been used in the 19th and early 20th centuries for such practitioners.
The suffix '-ist' tells you someone practices something—a 'colyumist' was basically a person whose job was giving people enemas, a profession that was surprisingly common and respected in the Victorian era!
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