onset

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noun on·set \ˈȯn-ˌset, ˈän-\

Definition of onset

  1. 1 :  attack, assault withstand the onset of the army

  2. 2 :  beginning, commencement the onset of winter the onset of age-related diseases

Examples of onset in a Sentence

  1. the walls withstood the onset of the first battalion

  2. the claim that if you take enough vitamin C at the onset of a cold, you'll often recover faster

Recent Examples of onset from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'onset.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of onset

circa 1522


ONSET Defined for English Language Learners

onset

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noun

Definition of onset for English Language Learners

  • : the beginning of something


ONSET Defined for Kids

onset

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noun on·set \ˈȯn-ˌset, ˈän-\

Definition of onset for Students

  1. 1 :  beginning 1 the onset of winter

  2. 2 :  2attack 1


Medical Dictionary

onset

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noun on·set \ˈȯn-ˌset, ˈän-\

Medical Definition of onset

  1. :  the initial existence or symptoms of a disease the onset of scarlet fever



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