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1. Salty fluid secreted by through pores in the skin (when hot, nervous, etc.)
   "perspiration poured off his brow";
   - sweat, sudor [technical]
    
2. The process of the sweat glands of the skin secreting a salty fluid
   "perspiration is a homeostatic process";
   - sweating, diaphoresis, sudation, hidrosis

Derived forms: perspirations

Type of: activity, bodily function, bodily process, body process, secretion

Encyclopedia: Perspiration