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

concussion

noun
 
/kənˈkʌʃn/
 
/kənˈkʌʃn/
[uncountable, countable]
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  1. a temporary loss of consciousness caused by a hard hit on the head; the effects of a severe hit on the head, such as not being able to think clearly and temporary loss of physical and mental abilities
    • He was taken to hospital with concussion.
    • She suffered a mild concussion.
    • He was carried off the field with a mild concussion.
    Topics Health problemsc2
    Oxford Collocations Dictionaryadjective
    • mild
    • minor
    • slight
    verb + concussion
    • get
    • have
    • suffer
    preposition
    • with concussion
    See full entry
    Word Originlate Middle English: from Latin concussio(n-), from the verb concutere ‘dash together, shake’, from con- ‘together’ + quatere ‘shake’.
See concussion in the Oxford Advanced American Dictionary
previously
adverb
 
 
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