Relating to a substance or treatment that reduces or prevents sweating.
From anti- (against) + hidrotic, which comes from Greek 'hidros' (sweat) combined with -otic (a medical suffix). This medical term developed in pharmacology to describe drugs and treatments that suppress perspiration.
Antiperspirant deodorants use antihidrotic compounds to keep you dry, but historically people used them in medieval times too—they'd apply substances to reduce sweat during long journeys because excessive sweating was seen as unhealthy!
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