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transpiration |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Transpiration \Tran`spi*ra"tion\, n. [F. transpiration.] 1. (Physiol.) The act or process of transpiring or excreting in the form of vapor; exhalation, as through the skin or other membranes of the body; as pulmonary transpiration, or the excretion of aqueous vapor from the lungs. Perspiration is a form of transpiration. --Cudworth. 2. (bot.) The evaporation of water, or exhalation of aqueous vapor, from cells and masses of tissue. 3. (Physics) The passing of gases through fine tubes, porous substances, or the like as transpiration through membranes. From WordNet r 1.6 [wn]: transpiration n 1: the passage of gases through fine tubes because of differences in pressure or temperature 2: the emission of water vapor from the leaves of plants 3: the process of secreting perspiration [syn: {perspiring}, {sweating}]
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