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1. Dictionary

   decay

   /dɪˈkeɪ/

   verb

   • 1. (of organic matter) rot or decompose through the action of bacteria and fungi: "the body had begun to decay" Similar decomposerotputrefygo badgo offspoilfesterperishdeterioratedegradebreak downbreak upmouldershrivelshrivel upwithertechnical:mortifynecrotizesphacelatearchaic:corrupt
   • ▪ cause to rot or decompose: "the fungus will decay soft timber"
   • ▪ fall into disrepair; deteriorate: "facilities decay when money is not spent on refurbishment" Similar deterioratedegeneratedeclinego downhillslumpslipslidego to rack and ruingo to seedrun to seedworsencrumbledisintegratefall to piecescome apart at the seamsfall into disrepairbecome dilapidatedfailwaneebbdwindlecollapseinformal:go to potgo to the dogshit the skidsgo down the tubesgo down the toiletgo to the packOpposite improve
   • ▪ decline in quality, power, or vigour: "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"

   noun

   • 1. the state or process of rotting or decomposition: "hardwood is more resistant to decay than softwood" Similar decompositionrottinggoing badputrefactionputrescenceputridityfesteringspoilageperishingwitheringshrivellingrotmouldmildewfungusarchaic:corruptionrotrottingcorrosioncorrodingdecompositioncariescavitiesholesrare:cariosity
   • ▪ rotten matter or tissue: "fluoride heals small spots of decay"
   • ▪ structural or physical deterioration: "the old barn rapidly fell into decay" Similar deteriorationdegenerationdebasementdegradationdeclineslippingwaningebbshrinkingwitheringweakeningatrophycrumblingdisintegrationcollapselapsefallfailureformal:devolutiondated:decadenceOpposite improvement
   • ▪ the process of declining in quality, power, or vigour: "the problems of urban 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 required time constant for current decay is 1 ms"

   Word Origin late Middle English: from Old French decair, based on Latin decidere ‘fall down or off’, from de- ‘from’ + cadere ‘fall’.

   Scrabble Points: 11

   • D

     2

   • E

     1

   • C

     3

   • A

     1

   • Y

     4

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2. dictionary.cambridge.org › dictionary › englishDECAY | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

   • Cached

   DECAY definition: 1. to become gradually damaged, worse, or less; to cause something to do this: 2. If a radioactive…. Learn more.

   • Znaczenie Decay, Definicja W Cambridge English Dictionary

     DECAY definicja: 1. to become gradually damaged, worse, or...

   • English (US)

     DECAY meaning: 1. to become gradually damaged, worse, or...

   • Decay Spanish Translation

     DECAY translate: descomponerse, pudrirse, decaer,...

   • Decay: Russian Translation

     DECAY translate: разрушаться, разлагаться . Learn more in...

   • Decay: French Translation

     DECAY translate: pourrir, gâter, se décomposer, se dégrader,...

   • Decay: Italian Translation

     DECAY translate: decomporsi, putrefarsi, deteriorare;...

   • Decay: Catalan Translation

     decay translate: podrir-se, corcar-se. Learn more in the...

   • Decay: Japanese Translation

     DECAY translate: ～が腐る, ～を腐らせる, 腐（くさ）る, 悪化（あっか）する, 腐食（ふしょく）....

3. www.merriam-webster.com › dictionary › decayDecay Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › decay

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   The meaning of DECAY is to undergo decomposition. How to use decay in a sentence. Synonym Discussion of Decay.

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5. www.collinsdictionary.com › dictionary › englishDECAY definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

   • Cached

   11 meanings: 1. to decline or cause to decline gradually in health, prosperity, excellence, etc; deteriorate; waste away 2. to.... Click for more definitions.

6. dictionary.cambridge.org › us › dictionaryDECAY | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

   • Cached

   Learn the meaning of decay as a verb and a noun, with examples of usage and related words. Find out how decay is used in physics, dentistry, and other fields.

7. People also ask

   What is radioactive decay?

   • Radioactive decay happens at a constant rate regardless of exposure to air. Definition of decay noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

   decay noun - Definition, pictures, pronunciation and usage notes

   www.oxfordlearnersdictionaries.com/definition/english/decay_1

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   What are some examples of decay?

   • 1. Biology To break down into component parts; rot. 2. Physics To disintegrate in a process of radioactive decay or particle decay. 3. Electronics To decrease gradually in magnitude. Used of voltage or current. 4. Aerospace To decrease in orbit. Used of an artificial satellite. 5. To fall into ruin: a civilization that had begun to decay. 6.

   Decay - definition of decay by The Free Dictionary

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   What does decay mean?

   • DECAY definition: 1. to become gradually damaged, worse, or less; to cause something to do this: 2. If a radioactive…. Learn more.

   DECAY | English meaning - Cambridge Dictionary

   dictionary.cambridge.org/dictionary/english/decay

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   How do you know if your body is decaying?

   • Broken sidewalks, potholes, graffiti are all signs of urban decay. Tooth decay is something to avoid. Decay can also mean decline. Anyone, even a great athlete, must exercise regularly to maintain muscle tone—as soon as you stop, the muscles begin to decay.

   Decay - Definition, Meaning & Synonyms | Vocabulary.com

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   What does a decaying dam mean?

   • de·cay′er n. These verbs refer to the gradual process by which something breaks down or falls apart as a result of natural causes. Decay has wide application but often suggests partial deterioration short of complete destruction: "A decaying dam is an accident waiting to happen" (George Black).

   Decay - definition of decay by The Free Dictionary

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   What is the difference between decay and decompose?

   • decay implies a slow change from a state of soundness or perfection. decompose stresses a breaking down by chemical change and when applied to organic matter a corruption. rot is a close synonym of decompose and often connotes foulness. putrefy implies the rotting of animal matter and offensiveness to sight and smell.

   Decay Definition & Meaning - Merriam-Webster

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8. www.vocabulary.com › dictionary › decayDecay - Definition, Meaning & Synonyms - Vocabulary.com

   www.vocabulary.com › dictionary › decay

   To decay means to rot, decompose, break down. Our bodies—anything organic—will decay after death. Broken sidewalks, potholes, graffiti are all signs of urban decay.

9. www.thefreedictionary.com › decayDecay - definition of decay by The Free Dictionary

   www.thefreedictionary.com › decay

   • Cached

   Decay is the process of breaking down, rotting, or deteriorating something. It can also refer to the disintegration of atomic nuclei or particles, or the decrease of a stored charge or flux.

10. www.oxfordlearnersdictionaries.com › definitiondecay noun - Definition, pictures, pronunciation and usage ...

    www.oxfordlearnersdictionaries.com › definition

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    Definition of decay noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.