A narrowing or abnormal constriction of the rectum or anal opening, often due to scarring or disease.
From Greek ἄρχο- (árkhō-, 'anus' or 'rectum') plus stenosis (from στένωσις, 'narrowing'). Nearly synonymous with archostegnosis, it uses the more common medical suffix for strictures.
Medieval and Victorian doctors loved making disease names by combining Greek roots—archostenosis and archostegnosis are basically the same condition with slightly different suffixes, showing how medical terminology sometimes splits hairs unnecessarily.
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