energetic — adjective Etymology: Greek energētikos, from energein to be active, from energos Date: 1651 1. operating with or marked by vigor or effect 2. marked by energy ; strenuous < an energetic walk > 3. of or relating to energy < energetic equation > … New Collegiate Dictionary
Energy quality — the contrast between different forms of energy, the different trophic levels in ecological systems and the propensity of energy to convert from one form to another. The concept refers to our empirical experience of the characteristics, or qualia … Wikipedia
Energetic — En er*get ic, Energetical En er*get ic*al, a. [Gr. ?, fr. ? to work, be active, fr. ? active. See {Energy}.] 1. Having energy or energies; possessing a capacity for vigorous action or for exerting force; active. A Being eternally energetic. Grew … The Collaborative International Dictionary of English
Energy balance — has the following meanings in several fields:* In physics, energy balance is a systematic presentation of energy flows and transformations in a system. Theoretical basis for an energy balance is the first law of thermodynamics according to which… … Wikipedia
Energy drink — Energy drinks are beverages whose producers advertise that they boost energy. These advertisements usually do not emphasize energy derived from the sugar and caffeine they contain[1] but rather increased energy release due to a variety of… … Wikipedia
Energy (disambiguation) — Energy is the physical quantity measured in physics and other sciences.Energy may also refer toIn science: *Energy (society), energy resources such as fuel and electricity *Energy (signal processing), the energy Es of a continuous time signal… … Wikipedia
energetic — 1650s, “powerful,” from Gk. energetikos “active,” from energein to work, act upon (see ENERGY (Cf. energy)). Of persons, “active,” in English from 1796 (energetical is from c.1600) … Etymology dictionary
energetic — ► ADJECTIVE 1) showing or involving great energy or activity. 2) Physics relating to energy. DERIVATIVES energetically adverb. ORIGIN originally meaning «powerfully effective»: from Greek energein operate, work in or upon … English terms dictionary
Energetic material — Energetic materials are a class of materials with high amount of stored chemical energy that can be released. [http://undergradresearch.missouri.edu/forums conferences/abstracts/abstract detail.php?abstractid=843] Typical classes of energetic… … Wikipedia
Energy absorber — may refer to several things: *A panel to absorb the radiant energy of sunlight to heat a fluid, often water for domestic use (see solar hot water). *A bolometer, a device to convert electromagnetic radiation and the momentum of energetic… … Wikipedia
