D defs.my
Entry 6 senses Webster, 1913

Degradation

/dĕgˌ-rəd-āsh'-ən/ · Deg·ra·da·tion · IPA /ˌdɛɡɹəˈdeɪʃən/
01 n. The act of reducing in rank, character, or reputation, or of abasing; a lowering from one's standing or rank in office or society; diminuti…
  1. 1.
    The act of reducing in rank, character, or reputation, or of abasing; a lowering from one's standing or rank in office or society; diminution; as, the degradation of a peer, a knight, a general, or a bishop.
    “He saw many removes and degradations in all the other offices of which he had been possessed.” Clarendon.
  2. 2.
    The state of being reduced in rank, character, or reputation; baseness; moral, physical, or intellectual degeneracy; disgrace; abasement; debasement.
    “The . . . degradation of a needy man of letters.” Macaulay.
    “Deplorable is the degradation of our nature.” South.
    “Moments there frequently must be, when a sinner is sensible of the degradation of his state.” — Blair.
  3. 3.
    Diminution or reduction of strength, efficacy, or value; degeneration; deterioration.
    “The development and degradation of the alphabetic forms can be traced.” — I. Taylor (The Alphabet).
  4. 4.
    A gradual wearing down or wasting, as of rocks and banks, by the action of water, frost etc.(Geol.)
  5. 5.
    The state or condition of a species or group which exhibits degraded forms; degeneration.(Biol.)
    “The degradation of the species man is observed in some of its varieties.” Dana.
  6. 6.
    Arrest of development, or degeneration of any organ, or of the body as a whole.(Physiol.)
Phrases & compounds
Degradation of energy — the transformation of energy into some form in which it is less available for doing work.