English Dictionary: Transpiration | by the DICT Development Group |
2 results for Transpiration | |
From WordNet (r) 3.0 (2006) [wn]: | |
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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. |