'Transpiration' definitions:
Definition of 'transpiration'
(from WordNet)
noun
The passage of gases through fine tubes because of differences in pressure or temperature
noun
The process of giving off or exhaling water vapor through the skin or mucous membranes
noun
The emission of water vapor from the leaves of plants
Definition of 'Transpiration'
From: GCIDE
- 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. [1913 Webster]
- 2. (bot.) The evaporation of water, or exhalation of aqueous vapor, from cells and masses of tissue. [1913 Webster]
- 3. (Physics) The passing of gases through fine tubes, porous substances, or the like; as, transpiration through membranes. [1913 Webster]