Energy-density
noun
1.
the amount of energy stored in a given system or region of space per unit volume.
energy density
See under density.
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noun 1. a measure of the efficiency of a heating or cooling system, as a heat pump or air conditioner, equal to the ratio of the output in B.T.U./hour to the input in watts: A high-efficiency home window air conditioner has an energy efficiency ratio of 7.5 or more. Abbreviation: EER.
- Energy-level
noun 1. a comparative level of capacity for vigorous activity: The child has a high energy level. 2. Also called energy state. Physics. one of a quantized series of states in which matter may exist, each having constant energy and separated from others in the series by finite quantities of energy. noun (physics) 1. a […]
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adjective 1. using electrical power in an efficient or economical way