Relating to or used in enemas or internal washing treatments.
From Greek klysma (enema) + -ian (relating to). The suffix -ian was added to create an adjective form describing things connected to this medical practice.
This obscure adjective shows how medical jargon got incredibly specific—instead of just saying 'related to enemas,' doctors created 'clysmian' to sound more precise and professional, even though most people today have never heard it.
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