transpiration

noun tran·spi·ra·tion \ ˌtran(t)s-pə-ˈrā-shən \
|Updated on: 6 Jul 2018

Definition of transpiration

: the act or process or an instance of transpiring; especially : the passage of watery vapor from a living body (as of a plant) through a membrane or pores

transpirational

play \ˌtran(t)s-pə-ˈrā-shnəl, -shə-nᵊl\ adjective

Recent Examples of transpiration from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'transpiration.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of transpiration

15th century

in the meaning defined above

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TRANSPIRATION Defined for Kids

transpiration

noun trans·pi·ra·tion \ ˌtrans-pə-ˈrā-shən \

Definition of transpiration for Students

: the process by which plants give off water vapor through openings in their leaves

Medical Dictionary

transpiration

noun tran·spi·ra·tion \ tran(t)s-pə-ˈrā-shən \

medical Definition of transpiration

: the passage of watery vapor from a living body through a membrane or pores

transpirational

play \-shnəl, -shən-ᵊl\ adjective


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