Definitions for: Transpiration


[n] the emission of water vapor from the leaves of plants
[n] the passage of gases through fine tubes because of differences in pressure or temperature
[n] the process of givng off or exhaling water vapor through the skin or mucous membranes



Webster (1913) Definition: 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.

See Also: action, activity, biological process, bodily function, bodily process, body process, natural action, natural process, organic process

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