Definition of injection noun from the Oxford Advanced Learner's Dictionary

     

    injection

     noun
    noun
    BrE BrE//ɪnˈdʒekʃn//
     
    ; NAmE NAmE//ɪnˈdʒekʃn//
     
    Medication
     
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  1. 1[countable, uncountable] an act of injecting somebody with a drug or other substance to give somebody an injection He was treated with penicillin injections. An anaesthetic was administered by injection. daily injections of insulin Wordfinderchemotherapy, cure, disease, drug, injection, medication, osteopathy, palliative, physiotherapy, radiotherapy CollocationsIllnessesBecoming ill catch a cold/​an infectious disease/​the flu/(British English) flu/​pneumonia/​a virus/(informal) a bug get (British English) ill/(North American English) sick/​a disease/​AIDS/​breast cancer/​a cold/​the flu/(British English) flu/​a migraine come down with a cold/​the flu/(British English) flu contract a deadly disease/​a serious illness/​HIV/​AIDS be infected with a virus/​a parasite/​HIV develop cancer/​diabetes/​a rash/​an ulcer/​symptoms of hepatitis have a heart attack/​a stroke provoke/​trigger/​produce an allergic reaction block/​burst/​rupture a blood vessel damage/​sever a nerve/​an artery/​a tendonBeing ill feel (British English) ill/​sick/​nauseous/​queasy be running (British English) a temperature/(North American English) a fever have a head cold/​diabetes/​heart disease/​lung cancer/​a headache/(British English) a high temperature/(North American English) a fever suffer from asthma/​malnutrition/​frequent headaches/​bouts of depression/​a mental disorder be laid up with/ (British English) be in bed with a cold/​the flu/(British English) flu/​a migraine nurse a cold/​a headache/​a hangover battle/​fight cancer/​depression/​addiction/​alcoholismTreatments examine a patient diagnose a condition/​disease/​disorder be diagnosed with cancer/​diabetes/​schizophrenia prescribe/​be given/​be on/​take drugs/​medicine/​medication/​pills/​painkillers/​antibiotics treat somebody for cancer/​depression/​shock have/​undergo an examination/​an operation/​surgery/​a kidney transplant/​therapy/​chemotherapy/​treatment for cancer have/​be given an injection/(British English) a flu jab/(North American English) a flu shot/​a blood transfusion/​a scan/​an X-ray cure a disease/​an ailment/​cancer/​a headache/​a patient prevent the spread of disease/​further outbreaks/​damage to the lungs be vaccinated against the flu/(British English) flu/​the measles/(British English) measles/​polio/​smallpox enhance/​boost/​confer/​build immunity to a disease See related entries: Medication
  2. 2[countable] a large sum of money that is spent to help improve a situation, business, etc. The theatre faces closure unless it gets an urgent cash injection.
  3. 3[uncountable, countable] an act of forcing liquid into something a fuel injection system
  4. Word Origin late Middle English: from Latin injectio(n-), from the verb inicere, from in- ‘into’ + jacere ‘throw’.Extra examples Both groups received a second injection with the same solution. Can I bring my dog in for his booster injection? He had to have a tetanus injection after injuring himself with a shovel. In some US states execution is by lethal injection. The best treatment is antibiotics, preferably by injection. The company had reached the size where it needed an injection of capital. The infrastrucure requires a massive cash injection. The rats received a daily injection of the drug. They gave her an injection to stop the pain. a 2-litre direct injection engine a cash injection from the Belgian state an injection against whooping cough an injection into the vein an injection of cash into the economy injections for diabetes plastic light fittings produced by injection moulding
See the Oxford Advanced American Dictionary entry: injection