| Section E | E index | 191-199 of 498 terms |
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electrostatic precipitatorA device for removing particulate matter from smokestack exhaust gas by imparting an electric charge to the particles and then attracting them to a metal plate or screen of opposite charge before the gas is exhausted out of the top of the stack.
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element1. Smallest entity that is capable of possessing chemical characteristics and that cannot be changed into smaller neutral units by chemical reaction. Elements in their pure form may exist in atomic forms, for example, He, Ne, or may be associated into molecular units such as H2, O2, graphite, or diamond. 2. Any one of the properties or conditions of the atmosphere that together specify the physical state of weather or climate at a given place for any particular moment or period of time; the climatic elements, meteorological elements. 3. The smallest definable object of interest in a scene. It is a single item in a collection, population, or sample.
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elerwindA wind of Sun Valley, north of Kufstein, in the Tyrol.
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elevation capacity curveMeasures the volume (capacity) of a reservoir below a certain elevation.
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elevation1. A measure (or condition) of height, especially with respect to the height of a point on the earth's surface above a reference plane (usually mean sea level), as “station elevation.” The term altitude (e.g., “high-altitude station”) and the general term “height” are also used in this sense. 2. Same as elevation angle.
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