asthma

noun asth·ma \ ˈaz-mə , British ˈas- \
Updated on: 15 Nov 2017

Definition of asthma

: a chronic lung disorder that is marked by recurring episodes of airway obstruction (as from bronchospasm) manifested by labored breathing accompanied especially by wheezing and coughing and by a sense of constriction in the chest, and that is triggered by hyperreactivity to various stimuli (such as allergens or rapid change in air temperature)

asthmatic

play \az-ˈma-tik, British as-\ adjective or noun

asthmatically

play \-ti-k(ə-)lē\ adverb

Recent Examples of asthma from the Web

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

Origin and Etymology of asthma

Middle English asma, from Medieval Latin, modification of Greek asthma


ASTHMA Defined for English Language Learners

asthma

noun

Definition of asthma for English Language Learners

  • medical : a physical condition that makes it difficult for someone to breathe


ASTHMA Defined for Kids

asthma

noun asth·ma \ ˈaz-mə \

Definition of asthma for Students

: a lung disorder that causes periods of wheezing, coughing, and difficulty with breathing

Medical Dictionary

asthma

noun asth·ma \ ˈaz-mə \

medical Definition of asthma

: a chronic lung disorder that is marked by recurring episodes of airway obstruction (as from bronchospasm) manifested by labored breathing accompanied especially by wheezing and coughing and by a sense of constriction in the chest, and that is triggered by hyperreactivity to various stimuli (as allergens or rapid change in air temperature)


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