Transpiration

Transpiration refers to the evaporation of water from a biological surface, such as leaves, skin, or lungs. In its most common usage, however, transpiration refers to the loss of water from plant foliage, occurring through microscopic pores known as stomata. Transpiration is a component of a larger process known as evapotranspiration, which is the evaporation of water from a landscape, including both inorganic surfaces such as soil and bodies of water, and biological surface such as foliage.