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Meaning of transpiration

tran•spi•ra•tion

Pronunciation: (tran"spu-rā'shun), [key]
— n.
  1. an action or instance of transpiring.
  2. the passage of water through a plant from the roots through the vascular system to the atmosphere.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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