Plural of exudate; substances that have seeped or oozed out, especially from blood vessels into surrounding tissues during inflammation.
From Latin 'exudare' (ex- 'out' + sudare 'to sweat'), exudates are materials that literally 'sweat out' of tissues, commonly seen in medical contexts.
When you have an infected wound that oozes, that liquid is an exudate—it's how your body is actually trying to heal by flushing out the bad stuff.
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