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injection - definition and synonyms

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noun     injection pronunciation in British English
Word Forms
  1. 1
    [countable] a drug or another substance that is injected into your body

    He needs a daily injection of insulin.

    give someone an injection:

    Did the doctor give you a measles injection?

    have/receive an injection:

    We had to have five injections before the trip.

    1. a.
      [uncountable] the process of injecting a drug or another substance into your body

      This medicine is usually administered by injection.

  2. 2
    [countable/uncountable] the addition of money to a business, a government programme, or someone’s bank account
    injection of:

    The company needs a huge injection of cash, and better trained staff.

    the need for injection of capital from the parent bank

  3. 3
    [uncountable] the process of forcing a liquid into something by using pressure
    See also fuel injection


to manipulate someone psychologically so that they begin to question their own perceptions and memories

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Dunning-Kruger effect

the phenomenon by which an incompetent person is too incompetent to understand his own incompetence

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