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  1. DECAY Definition & Meaning - Merriam-Webster

    decay, decompose, rot, putrefy, spoil mean to undergo destructive dissolution. decay implies a slow change from a state of soundness or perfection.

  2. Decay Definition & Meaning | Britannica Dictionary

    decay, decompose, rot, putrefy, and spoil mean to slowly fall apart and become destroyed by natural processes. decay is the most general of these terms. It often suggests a slow change …

  3. DECAY | English meaning - Cambridge Dictionary

    The bacteria live on food particles and produce acid that decays the enamel on your teeth. The flesh on a dead body decays very rapidly. It's sad to watch a beautiful rose wither and decay in …

  4. DECAY Definition & Meaning | Dictionary.com

    Decay, decompose, disintegrate, rot imply a deterioration or falling away from a sound condition. Decay implies either entire or partial deterioration by progressive natural changes: Teeth decay.

  5. DECAY Synonyms: 150 Similar and Opposite Words - Merriam-Webster

    Some common synonyms of decay are decompose, putrefy, rot, and spoil. While all these words mean "to undergo destructive dissolution," decay implies a slow change from a state of …

  6. DECAY | definition in the Cambridge English Dictionary

    The bacteria live on food particles and produce acid that decays the enamel on your teeth. The flesh on a dead body decays very rapidly. It's sad to watch a beautiful rose wither and decay in …

  7. Radioactive decay - Wikipedia

    Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by …

  8. Decay - definition of decay by The Free Dictionary

    Decay has wide application but often suggests partial deterioration short of complete destruction: "A decaying dam is an accident waiting to happen" (George Black).

  9. decay - Wiktionary, the free dictionary

    Dec 24, 2025 · decay (third-person singular simple present decays, present participle decaying, simple past and past participle decayed) (intransitive) To deteriorate, to get worse, to lose …

  10. DECAY definition and meaning | Collins English Dictionary

    Decay is also a noun. When not removed, plaque causes tooth decay and gum disease.