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Definition of Transpiration

Babylon English Dictionary

act of transpiring; emission of vapor through the surface of an object
Transpiration Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
(n.)
The passing of gases through fine tubes, porous substances, or the like; as, transpiration through membranes.
  
(n.)
The evaporation of water, or exhalation of aqueous vapor, from cells and masses of tissue.
  
(n.)
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.
  
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
hEnglish - advanced version

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.
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.
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

WordNet 2.0

Noun
1. the passage of gases through fine tubes because of differences in pressure or temperature
(hypernym) natural process, natural action, action, activity
(derivation) transpire, transpirate
2. the process of givng off or exhaling water vapor through the skin or mucous membranes
(hypernym) bodily process, body process, bodily function, activity
(derivation) transpire
3. the emission of water vapor from the leaves of plants
(hypernym) organic process, biological process
(derivation) transpire
Transpiration Definition from Science & Technology Dictionaries & Glossaries
WEATHER&METEOROLOGY
The process by which water in plants is transferred as water vapor to the atmosphere. Related terms: evapotranspiration
Glossary of water terms
process by which water that is absorbed by plants, usually through the roots, is evaporated into the atmosphere from the plant surface, such as leaf pores. See evapotranspiration .
Transpiration Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
Transpiration is the process of water movement through a plant and its evaporation from aerial parts especially from leaves but also from stems and flowers. Leaf surfaces are dotted with pores which are called stomata, and in most plants they are more numerous on the undersides of the foliage. The stomata are bordered by guard cells and their stomatal accessory cells (together known as stomatal complex) that open and close the pore. Transpiration occurs through the stomatal apertures, and can be thought of as a necessary "cost" associated with the opening of the stomata to allow the diffusion of carbon dioxide gas from the air for photosynthesis. Transpiration also cools plants, changes osmotic pressure of cells, and enables mass flow of mineral nutrients and water from roots to shoots.

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Transpiration Definition from Society & Culture Dictionaries & Glossaries
EPA Terms of Environment
The process by which water vapor is lost to the atmosphere from living plants. The term can also be applied to the quantity of water thus dissipated.
Provided as a public service by the U.S. Environmental Protection Agency
Environmental Engineering (English ver.)
direct transfer of water from the leaves of living plants or the skins of animals into the atmosphere.
The process by which water vapor is released to the atmosphere by living plants.
Transpiration Definition from Entertainment & Music Dictionaries & Glossaries
English to Federation-Standard Golic Vulcan
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