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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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   More definitions, origin and scrabble points

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

   dictionary.cambridge.org › dictionary › english

   • Cached

   to become gradually damaged, worse, or less; to cause something to do this: Sugar makes your teeth decay. The role of the extended family has been decaying for some time. Pollution has decayed the surface of the stonework on the front of the cathedral. the smell of decaying meat. [ I ] physics specialized.

   • English (US)

     to become gradually damaged, worse, or less; to cause...

   • Traditional

     DECAY translate: 腐蝕;（使）衰敗，（使）衰弱, （放射性物質）衰變, 腐蝕;衰敗，衰弱,...

   • Znaczenie Decay, Definicja W Cambridge English Dictionary

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

   • Decay: Polish Translation

     DECAY translate: gnić, rozkładać się, gnić, psuć się,...

   • Decay: Russian Translation

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

   • Decay: French Translation

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

   • Decay: German Translation

     decay translate: verderben, der Verfall. Learn more in the...

   • Decay Turkish Translation

     DECAY translate: çürümek, çökmek, çürümek, çürüme. Learn...

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

   www.collinsdictionary.com › dictionary › english

   • Cached

   1. to decline or cause to decline gradually in health, prosperity, excellence, etc; deteriorate; waste away. 2. to rot or cause to rot as a result of bacterial, fungal, or chemical action; decompose. 3. Also: disintegrate (intransitive) physics. a.

4. Videos

   • 

     14:13

     youtube.com

     Radioactivity (3 of 16) Three Types of Radioactive Decay, An Explanation

     18 Mar 2019

     28.4K views

   • 

     6:09

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     😎 Decay Meaning - Decay Defined - Decay Examples - Decay Definition - Decay Means - Decay Decayed

     8 Feb 2024

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     8:08

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     Different types of decay | Alpha vs. Beta vs. Gamma decay | Visual Explanation

     7 Jun 2022

     58.7K views

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

   www.merriam-webster.com › dictionary › decay

   • Cached

   Learn the various meanings and uses of the word decay as a verb and a noun, with synonyms, examples, and word history. Find out how decay relates to decomposition, radioactivity, decline, and more.

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. www.dictionary.com › browse › decayDECAY Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › decay

   • Cached

   Decay definition: to become decomposed; rot. See examples of DECAY used in a sentence.

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. Tooth decay is something to avoid.

9. www.oxfordlearnersdictionaries.com › english › decay_1decay noun - Definition, pictures, pronunciation and usage notes...

   www.oxfordlearnersdictionaries.com › english › decay_1

   • Cached

   Decay is the process or result of being destroyed by natural causes or by not being cared for. It can also refer to the change of a radioactive substance to a different form by sending out radiation.