Acting against or serving to prevent plague or widespread disease; protective against pestilence or epidemic.
Adjectival form derived from 'antipestilence,' combining 'anti-' (against) with 'pestilent' (causing plague or disease). Common in medieval and early modern medical texts.
Medieval doctors prescribed 'antipestilent' herbs and potions that ranged from genuinely helpful (vinegar, which has antiseptic properties) to completely useless (unicorn horn, which doesn't exist).
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