Dictionary.com
Thesaurus.com

transpiration vs. evaporation

[tran-spuh-rey-shuhn] / ˌtræn spəˈreɪ ʃən /

noun

  1. an action or instance of transpiring.

  2. Botany.  the passage of water through a plant from the roots through the vascular system to the atmosphere.

[ih-vap-uh-rey-shuhn] / ɪˌvæp əˈreɪ ʃən /

noun

  1. the act or process of evaporating.

  2. the state of being evaporated.

  3. Archaic.  matter or the quantity of matter evaporated or passed off in vapor.