energy
English
Etymology
From Middle French énergie, from Late Latin energia, from Ancient Greek ἐνέργεια (enérgeia, “activity”), from ἐνεργός (energós, “active”), from ἐν (en, “in”) + ἔργον (érgon, “work”). The sense in physics was coined by Thomas Young in 1802 in his lectures on Natural Philosophy.
Pronunciation
- Lua error in Module:parameters at line 290: Parameter 1 should be a valid language or etymology language code; the value "UK" is not valid. See WT:LOL and WT:LOL/E. IPA(key): /ˈɛnəd͡ʒi/
- Lua error in Module:parameters at line 290: Parameter 1 should be a valid language or etymology language code; the value "US" is not valid. See WT:LOL and WT:LOL/E. IPA(key): /ˈɛnɚd͡ʒi/
Audio (US): (file)
Noun
energy (countable and uncountable, plural energies)
- The impetus behind all motion and all activity.
- 2013 June 1, “Ideas coming down the track”, in The Economist, volume 407, number 8838, page 13 (Technology Quarterly):
- A “moving platform” scheme […] is more technologically ambitious than maglev trains even though it relies on conventional rails. […] This set-up solves several problems […]. Stopping high-speed trains wastes energy and time, so why not simply slow them down enough for a moving platform to pull alongside?
- The capacity to do work.
- 1915, G[eorge] A. Birmingham [pseudonym; James Owen Hannay], chapter I, in Gossamer, New York, N.Y.: George H. Doran Company, →OCLC:
- There is an hour or two, after the passengers have embarked, which is disquieting and fussy. […] Stewards, carrying cabin trunks, swarm in the corridors. Passengers wander restlessly about or hurry, with futile energy, from place to place.
- (physics) A quantity that denotes the ability to do work and is measured in a unit dimensioned in mass × distance²/time² (ML²/T²) or the equivalent.
- Units:
- SI: joule (J), kilowatt-hour (kW·h)
- CGS: erg (erg)
- Customary: foot-pound-force, calorie, kilocalorie (i.e. dietary calories), BTU, liter-atmosphere, ton of TNT
- Units:
- An intangible, modifiable force (often characterized as either 'positive' or 'negative') believed in some New Age religions to emanate from a person, place or thing and which is (or can be) preserved and transferred in human interactions; shared mood or group habit; a vibe, a feeling, an impression. (Compare aura.)
- 2004, Phylameana L. Desy, The Everything Reiki Book, Body, Mind & Spirit, p.130
- Reiki, much like prayer, is a personal exercise that can easily convert negative energy into positive energy.
- 2009, Christopher Johns, Becoming a Reflective Practitioner, John Wiley & Sons, p.15
- Negative feelings can be worked through and their energy converted into positive energy […]. In crisis, normal patterns of self-organization fail, resulting in anxiety (negative energy). Being open systems, people can exchange this energy with the environment and create positive energy for taking action based on a reorganisation of self as necessary to resolve the crisis and emerge at a higher level of consciousness; that is, until the next crisis.
- 2011, Anne Jones, Healing Negative Energies, Hachette, p.118
- If you have been badly affected by negative energy a salt bath is wonderful for clearing and cleansing yourself […]. Salt attracts negative energy and will draw it away from you.
- 2004, Phylameana L. Desy, The Everything Reiki Book, Body, Mind & Spirit, p.130
- (roleplaying games, video games, board games) A measure of how many actions a player or unit can take; in the fantasy genre often called magic points or mana.
- Synonym: action points
Synonyms
Hyponyms
- acoustic energy
- activation energy
- alternate energy
- alternative energy
- anisotropy energy
- atomic energy
- available energy
- barycentric energy
- binding energy
- bioenergy
- bond energy
- chemical energy
- cohesive energy
- collateral energy
- correlation energy
- Coulomb energy
- dark energy
- deformation energy
- disintegration energy
- dissociation energy
- effective energy
- eigenenergy
- elastic energy
- electric energy
- electromagnetic energy
- electrostatic energy
- excitation energy
- Fermi energy
- free energy
- geothermal energy
- Gibbs free energy
- green energy
- Helmholtz free energy
- impact energy
- interfacial energy
- internal energy
- ionization energy
- kinetic energy
- lattice energy
- luminous energy
- magnetic energy
- mass energy
- mechanical energy
- muzzle energy
- nuclear energy
- pairing energy
- particle energy
- Planck energy
- potential energy
- primary energy
- radiant energy
- radio energy
- recombination energy
- renewable energy
- resonance energy
- resource energy
- rest energy
- rotational energy
- secondary energy
- selfenergy
- separation energy
- solar energy
- sound energy
- specific energy
- spin-spin energy
- strain energy
- sublimation energy
- surface energy
- thermal energy
- tidal energy
- transition energy
- translational energy
- turbulence energy
- unavailable energy
- vacuum energy
- vibrational energy
- wall energy
- Wigner energy
- Zeeman energy
- zero-point energy
Derived terms
Related terms
Descendants
- → Cebuano: enerdyi
Translations
impetus behind activity
|
capacity to do work
|
physics
|
References
Further reading
- “energy”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
- “energy”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.
Anagrams
Categories:
- English terms derived from Middle French
- English terms derived from Late Latin
- English terms derived from Ancient Greek
- English terms coined by Thomas Young
- English coinages
- English 3-syllable words
- English terms with IPA pronunciation
- English terms with audio links
- English lemmas
- English nouns
- English uncountable nouns
- English countable nouns
- English terms with quotations
- en:Physics
- en:Role-playing games
- en:Video games
- en:Board games
- en:Energy