ˌpərspəˈrāshən, ˌpə̄s-, ˌpəis-, substand ˌpres- noun
( -s )
Etymology: French, from Middle French, from perspirer to perspire + -ation — more at perspire
1. : the act or process of perspiring
2. : a saline fluid that is secreted by the sweat glands, that consists chiefly of water containing sodium chloride and other salts, nitrogenous substances (as urea), carbon dioxide, and other solutes, and that serves both as a means of excretion and as a body temperature regulator through the cooling effect of its evaporation : sweat
3. : vigorous effort such as might be expected to cause sweating
more is usually accomplished by perspiration than by inspiration