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proliferation

n.
US //ˌpɹoʊɫɪfɝˈeɪʃən// UK //pɹəlˌɪfəɹˈeɪʃən// pro·lif·er·a·tion
  1. 1 rapid increase or spread (n.)
    C1 Advanced Academic

    a sudden and fast increase in the number or amount of something.

    the rapid and often excessive spread or increase in the number of something. Uncountable in its general sense, though often used with 'of'.

    Example

    The proliferation of smartphones has changed how we communicate every day.

    Example

    The rapid proliferation of digital streaming platforms has fundamentally altered the economic landscape of the entertainment industry.

    Usage

    Often followed by the preposition 'of'.

  2. 2 biological growth (n.)
    C2 Proficiency Technical Medicine

    the fast growth of cells or parts of a living thing.

    the reproduction or multiplication of similar forms, especially cells or organelles. Typically used in medical or biological contexts.

    Example

    The medicine is designed to stop the proliferation of cancer cells.

    Example

    Abnormal cell proliferation is a primary characteristic of many malignant tumours, requiring targeted therapeutic intervention.

    Usage

    Commonly used as an uncountable noun in scientific literature.

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  1. 3 nuclear weapons (n.)
    C1 Advanced Formal

    the spread of nuclear weapons to countries that do not have them.

    the spread of nuclear weapons, fissionable material, and weapons-applicable nuclear technology and information to nations not recognized as 'Nuclear Weapon States'.

    Example

    Many world leaders are worried about the proliferation of nuclear weapons.

    Example

    International treaties were established to prevent the proliferation of atomic weaponry and to encourage the peaceful use of nuclear energy.

    Teacher's tip

    In political contexts, you will almost always see this paired with 'non-' (non-proliferation) to describe efforts to stop the spread.

Origin

Borrowed from French prolifération.

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