decay

名词 n. 动词 v.
中文释义
英 /dɪˈkeɪ/    美 /diˈkeɪ/

英文释义

名词 n.
  1. Rot; any processes or result of organic matter being gradually decomposed, especially by microbial action. uncountable,usually
    — tooth decay/dental decay—wood-decay fungi—bacterial decay—photochemical decay
  2. Deterioration of condition; loss of status, quality, strength, or fortune. uncountable,usually
    — civic and moral decay—systemic decay—fall into decay—urban decay—arrested decay—memory decay
  3. Radioactive decay; decomposition of an atom or its nucleus. uncountable,usually
    — alpha decay—gamma decay—fission decay—decay chain
  4. Particle decay; decomposition of a sub-atomic particle. uncountable,usually
  5. Continuous decrease of a quantity. uncountable,usually
    — exponential decay—decay rate—orbital decay—decay time—decay constant—time decay
  6. Overthrow, destruction, ruin, death. obsolete,uncountable,usually
    — Let’s cheere our ſouldiers to incounter him, That grieuous image of ingratitude: That fiery thirſter after Soueraigntie: […] Reſolue my Lords and louing ſouldiers now, To ſaue your king and country from decay:
  7. Array decay. uncountable,usually
动词 v.
  1. To deteriorate, to get worse, to lose strength or health, to decline in quality. intransitive
    — The pair loved to take pictures in the decaying hospital on forty-third street.
  2. To deteriorate, to get worse, to lose strength or health, to decline in quality.; To undergo bit rot, that is, gradual degradation. intransitive
  3. To deteriorate, to get worse, to lose strength or health, to decline in quality.; To undergo software rot, that is, to fail to be updated in a changing environment, so as to eventually become legacy or obsolete. intransitive
  4. To deteriorate, to get worse, to lose strength or health, to decline in quality.; To undergo prolonged reduction in altitude (above the orbited body). intransitive
    — Damaged on lift-off, Skylab was left in orbit until its orbit decayed.
  5. To rot, to go bad. intransitive
    — The cat's body decayed rapidly.
  6. To change by undergoing fission, by emitting radiation, or by capturing or losing one or more electrons; to undergo radioactive decay. intransitive,transitive
    — Uranium decays to radium through a long series of steps with a cumulative half-life of 4.4 billion years.
  7. To undergo optical decay, that is, to relax to a less excited state, usually by emitting a photon or phonon. intransitive,transitive
  8. Loss of airspeed due to drag. intransitive
  9. To cause to rot or deteriorate. transitive
    — The extreme humidity decayed the wooden sculptures in the museum's collection in a matter of years.
  10. Of an array: to lose its type and dimensions and be reduced to a pointer, for example when passed to a function. intransitive

词形变化

decays plural decays present,singular,third-person decaying participle,present decayed participle,past decayed past

词汇关系

近义词
fester
衍生词
alpha decay array decay arrested decay bacterial decay beta decay biodecay bit decay c-decay decayability decayable decay chain decay constant decayer decayless decaylessness decay series decay time delta decay dental decay digital decay exponential decay gamma decay nonsense-mediated decay non-stop decay nuclear decay orbital decay particle decay photodecay platform decay predecay radioactive decay semidecay time decay tooth decay urban decay vacuum decay volatility decay weight decay decayingly nondecaying semidecaying undecaying
相关词
deciduous

词源

词源 1
From Middle English decaien (“to decrease, diminish”) and decai (“deterioration, decline in value”), from Anglo-Norman decaeir (“to fall away, decay, decline”), from Vulgar Latin *dēcadere, etymologically restored form of Latin dēcidere (“to fall down, to fail, sink or perish”), from de- (“of, from, away, down”) + cadere (“to fall”). Compare decadent and decadence.
词源 2
From Middle English decaien (“to decrease, diminish”) and decai (“deterioration, decline in value”), from Anglo-Norman decaeir (“to fall away, decay, decline”), from Vulgar Latin *dēcadere, etymologically restored form of Latin dēcidere (“to fall down, to fail, sink or perish”), from de- (“of, from, away, down”) + cadere (“to fall”). Compare decadent and decadence.
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