Relating to or characterized by sweating or perspiration that occurs on the surface or externally on the skin.
From Greek epi- (upon, over) + chindros (uncertain etymology, possibly relating to sweat or glandular secretion) + -tic (adjective suffix). The exact root is debated by etymologists, but the term clearly refers to surface-level perspiration.
This medical term fell out of use as doctors developed more precise vocabulary, but it reveals how ancient physicians categorized different types of sweat—some internal, some external—showing sophisticated observation long before modern physiology.
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