D defs.my
Entry 4 senses Webster, 1913

Energy

/ĕn'-ẽrj-ē/ · En·er·gy · IPA /ˈɛn.əɹ.d͡ʒi/
01 n. Internal or inherent power; capacity of acting, operating, or producing an effect, whether exerted or not; as, men possessing energies may …
pl. Energies ((#))
  1. 1.
    Internal or inherent power; capacity of acting, operating, or producing an effect, whether exerted or not; as, men possessing energies may suffer them to lie inactive.
    “The great energies of nature are known to us only by their effects.” — Paley.
  2. 2.
    Power efficiently and forcibly exerted; vigorous or effectual operation; as, the energy of a magistrate.
  3. 3.
    Strength of expression; force of utterance; power to impress the mind and arouse the feelings; life; spirit; -- said of speech, language, words, style; as, a style full of energy.
  4. 4.
    Capacity for performing work.(Physics)
Phrases & compounds
Accumulation, Conservation, Correlation, & Degradation, of energy — See under Accumulation, Conservation, Correlation, etc.