decay
dɪˈkeɪ
Definition Synonyms Conjugation

Definition of decay - Reverso English Dictionary

Noun

1.
decompositionprocess of rotting or decomposing organic matter
  • The decay of the fallen leaves was evident.
decomposition putrefaction
2.
tooth damageTECH.deterioration of tooth structure due to bacterial activityTECH.
  • The dentist found decay in my back tooth.
3.
gradual declineslow worsening in condition or quality over time
  • The building showed signs of decay after many years.
decline deterioration

Verb

intr.
1.
deteriorationdecline in quality or strength
  • The old building started to decay over the years.
decline deteriorate
2.
biological breakdownundergo decomposition
  • Leaves decay faster in a moist environment..
decompose rot spoil
3.
scienceTECH.undergo radioactive disintegrationTECH.
  • The unstable isotope will decay over time.
decompose disintegrate
4.
energyTECH.lose stored energy or chargeTECH.
  • The battery will decay if not used.
deplete discharge dissipate
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Expressions with decay

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loss of good values or right behavior in people or society
Many worry about the moral decay in modern society.
gradually become damaged or ruined
The old house began to fall into decay after years of neglect.
decrease in effectiveness over time
The time decay of the medication required patients to take it more frequently.
damage to teeth from bacteria causing a dental condition
Tooth decay can lead to pain and cavities.
slow damage of teeth caused by bacteria and acids in the mouth
Regular brushing and flossing help prevent dental decay in children and adults.
radioactive decay emitting an alpha particle
Alpha decay occurs in heavy elements like uranium.

Origin of decay

Old French, decair (to fall away)

Terms with decay included in their meaning

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decay
decaying of organic material
decaying fruit
too ripe and beginning to decay
food preservation
prepare food to prevent decay
dentistry
hole in a tooth caused by decay
decay
state of disintegration or decay
organic decay
process of decaying or rotting
decayed
fallen into disrepair or decay
rotn.
biology
process of decay or decomposition

Examples of decay in a sentence

  • Scientists studied the decay in the forest ecosystem.
  • Too much sugar can lead to tooth decay.
  • The filling stopped the decay from spreading.
  • There was visible decay in the old books.
  • Moral decay worried the community leaders.
  • The decay rate affects the material's stability.

View all translations of decay

Click below to see the appropriate translations facing each meaning.
  1. French:décomposition, se dégrader, ...
  2. German:Zersetzung, verfallen, ...
  3. Italian:decomposizione, degradarsi, ...
  4. Spanish:descomposición, deteriorarse, ...
  5. Portuguese:decomposição, deteriorar-se, ...
  6. Chinese:腐烂, 消耗, ...
  7. Japanese:腐敗, 劣化する, ...
  8. Arabic:تَحَلُّل, تَدَهْوَرَ, ...
  9. Hebrew:רִקָּבוֹן, לְהִתְדַּרְדֵּר, ...
  10. Russian:гниение, разрушаться, ...
  11. Ukrainian:гниття, руйнуватися, ...
  12. Hindi:सड़न, क्षय होना, ...
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