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Definition of transpiration noun from the Oxford Advanced Learner's Dictionary

transpiration

noun

/ˌtrænspɪˈreɪʃn/

/ˌtrænspɪˈreɪʃn/

[uncountable] (biology)

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the process of water passing out from the surface of a plant or leaf compare perspiration

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See transpiration in the Oxford Advanced American Dictionary

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