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Noun: transpiration  ,trans-pu'rey-shun
  1. The emission of water vapour from the leaves of plants
    "Transpiration helps regulate plant temperature and nutrient uptake"
     
  2. The process of giving off or exhaling water vapour through the skin or mucous membranes
    "Human transpiration increases during physical exertion"
     
  3. The passage of gases through fine tubes because of differences in pressure or temperature
    "Transpiration cooling is used in some aerospace applications"

Derived forms: transpirations

Type of: action, activity, biological process, bodily function, bodily process, body process, natural action, natural process, organic process

Encyclopedia: Transpiration