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1. Oxford American Dictionary

   decay

   • IPA[dəˈkā]

   美式

   • v.
     (of organic matter) rot or decompose through the action of bacteria and fungi；cause to rot or decompose
   • n.
     the state or process of rotting or decomposition；rotten matter or tissue

   • verb: decay, 3rd person present: decays, gerund or present participle: decaying, past tense: decayed, past participle: decayed

   • noun: decay, plural noun: decays

2. • 釋義
   • 相關詞

   v.

   動詞

   • 1. (of organic matter) rot or decompose through the action of bacteria and fungi the body had begun to decay 同義詞 decompose, rot, putrefy, go bad, go off, ... 更多spoil, fester, perish, deteriorate, degrade, break down, break up, molder, shrivel, shrivel up, wither, technicalmortify, necrotize, sphacelate, archaiccorrupt
   • ▪ cause to rot or decompose the fungus will decay soft timber
   • ▪ (of a building or area) fall into disrepair; deteriorate urban neighborhoods decay when elevated freeways replace surface roads 同義詞 deteriorate, degenerate, decline, go downhill, slump, ... 更多slip, slide, go to rack and ruin, go to seed, run to seed, worsen, crumble, disintegrate, fall to pieces, come apart at the seams, fall into disrepair, become dilapidated, fail, wane, ebb, dwindle, collapse, informalgo to pot, go to the dogs, hit the skids, go down the tubes, go down the toilet, go to the pack反義詞 improve
   • ▪ decline in quality, power, or vigor the moral authority of the party was decaying
   • ▪ (of a radioactive substance, particle, etc.) undergo change to a different form by emitting radiation the trapped radiocarbon begins to decay at a known rate
   • ▪ (of a physical quantity) undergo a gradual decrease the time taken for the current to decay to zero

   n.

   名詞

   • 1. the state or process of rotting or decomposition hardwood is more resistant to decay than softwood bacterial decay 同義詞 decomposition, rotting, going bad, putrefaction, putrescence, ... 更多putridity, festering, spoilage, perishing, withering, shriveling, rot, mold, mildew, fungus, archaiccorruption, rot, rotting, corrosion, corroding, decomposition, caries, cavities, holes, rarecariosity
   • ▪ rotten matter or tissue fluoride heals small spots of decay
   • ▪ structural or physical deterioration the old barn rapidly fell into decay 同義詞 deterioration, degeneration, debasement, degradation, decline, ... 更多slipping, waning, ebb, shrinking, withering, weakening, atrophy, crumbling, disintegration, collapse, lapse, fall, failure, formaldevolution, dateddecadence反義詞 improvement
   • ▪ the process of declining in quality, power, or vigor preachers warning of moral decay
   • ▪ the change of a radioactive substance, particle, etc. into another by the emission of radiation the gas radon is produced by the decay of uranium in rocks and soil
   • ▪ gradual decrease in the magnitude of a physical quantity the decay of electrical fields in the electromagnets

   decayed

   • adj.
     having rotted or decomposed: decayed animal and plant matter decayed teeth

   Oxford American Dictionary

   decayed

   • adj.
     having rotted or decomposed: decayed animal and plant matter decayed teeth

   Oxford Dictionary

   beta decay

   • n.
     radioactive decay in which an electron is emitted.

   Oxford Dictionary

   beta decay

   • n.
     radioactive decay in which an electron is emitted.

   Oxford American Dictionary

   tooth decay

   • n.
     decay of the outer surface of a tooth as a result of bacterial action: proper oral hygiene practices will go a long way in the prevention of tooth decay

   Oxford Dictionary

   tooth decay

   • n.
     decay of the outer surface of a tooth as a result of bacterial action: proper oral hygiene practices will go a long way in the prevention of tooth decay

   Oxford American Dictionary

3. • 更多解釋

   decay

   • IPA[dɪˈkeɪ]

   英式

   • v.
     (of organic matter) rot or decompose through the action of bacteria and fungi: the body had begun to decay
   • n.
     the state or process of rotting or decomposition: hardwood is more resistant to decay than softwood bacterial decay

   Oxford Dictionary