Relating to or having the quality or power of expelling, driving out, or forcing something away.
From Latin 'expulsorius', derived from 'expulsus' (past participle of 'expellere'). The suffix '-atory' indicates the capacity or tendency to perform an action.
This adjective was popular in medieval and Renaissance medical texts to describe 'expulsatory humors' or bodily functions that supposedly expelled harmful materials—it shows how ancient medical theory shaped specific technical vocabulary.
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