释义 |
tran·spi·ra·tion \ˌtranzpəˈrāshən, ˌtraan-, -n(t)sp-\ noun (-s) Etymology: Middle French from transpirer + -ation : an act, process, or instance of transpiring: as a. : the passage of fluid (as water) through skin or animal membrane in the form of a vapor; also : something that is transpired : perspiration b. : the emission or exhalation of watery vapor from the surfaces of leaves or other parts of plants c. : the passing of gases through fine tubes or porous substances because of differences of pressure or temperature — compare thermal transpiration |