Century Dictionary and Cyclopedia
- n. The act of resolving or the state of being resolved into vapor; the conversion of a solid or liquid by heat into vapor, fumes, or steam; vaporization. The process of evaporation is constantly going on at the surface of the earth, but principally at the surface of the sea and other bodies of water. The vapor thus formed, being specifically lighter than atmospheric air, rises to considerable heights above the earth's surface, and afterward, by a partial condensation, forms clouds, and finally descends in rain. The effect of evaporation is to reduce the temperature of the evaporating surface, and the evaporation of certain volatile liquids, such as ether, produces an intense degree of cold. Evaporation by direct heat (boiling down) is often practised on fluids, especially in pharmacy and cookery, in order to reduce them to a denser consistence, or to obtain in a dry and separate state the fixed matters contained in them.
- n. The matter evaporated or exhaled; vapor.
- n. In algebra, the disappearance of a solution of a system of equations by passing off to infinity. Thus, the solution of the two equations x—ky = a and x—y = b, which disappears when k = 1, is said to pass off by evaporation.
- n. The process of a liquid converting to the gaseous state.
- n. The process in which all or a portion of liquid (in a container) is turned into vapour, in order to increase the concentration of solid matter in the mixture.
- n. archaic That which is evaporated; vapour.
GNU Webster's 1913
- n. The process by which any substance is converted from a liquid state into, and carried off in, vapor.
- n. The transformation of a portion of a fluid into vapor, in order to obtain the fixed matter contained in it in a state of greater consistence.
- n. That which is evaporated; vapor.
- n. (Steam Engine) See Vaporization.
- n. the process of becoming a vapor
- n. the process of extracting moisture
“Warm air can hold more H2O than cold, so you get more evaporation from the oceans and to a lesser extent, the ground.”
“If this then led to more evaporation from the oceans, causing increased cloud cover, this could be a feedback, because clouds have a number of effects: they reflect more sunlight back into space (because they are whiter than the land and ocean surfaces they cover) and they trap more of the surface heat (because water vapour is a strong greenhouse gas).”
“They based their predictions on one million-acre feet a year deficit of the Colorado River, massive amounts of evaporation from the lake and the viscous effects of a warming world from climate change.”
“It is the evaporation from the big lagoons -- there are so many of them," McCoy explained.”
“They found that the rate rose over the study period from 1994 to 2006 and that the strongest component of that increase was an increase in evaporation over the ocean.”
“My guess is that plain evaporation is the major drying factor, here. aj_robins”
“A lot of water is lost in evaporation or through drainage from unsealed irrigation canals, and the common practice of flood irrigation is wasteful compared with drip irrigation, which supplies water directly to the plant's roots.”
“Moisture, for instance, appears to be regulated both in the mound's underground 'cellar' and possibly through evaporation from the top of the mound.”
“I've heard people say the haze in the area is from evaporation from the lake.”
“Any increase in temperature will have augmented the amount of evaporation from the lake.”
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