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Ulpian

(Encyclopedia)Ulpian (Dometius Ulpianus) ŭlˈpēən [key], d. 228, Roman jurist. He was a member of the council of the jurist Papinian. As Praetorian prefect from 222, he enjoyed the favor of the emperor Alexander...

transpiration

(Encyclopedia)transpiration, in botany, the loss of water by evaporation in terrestrial plants. Some evaporation occurs directly through the exposed walls of surface cells, but the greatest amount takes place throu...

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