disease

play
noun dis·ease \di-ˈzēz\

Definition of disease

  1. 1 obsolete :  trouble

  2. 2 :  a condition of the living animal or plant body or of one of its parts that impairs normal functioning and is typically manifested by distinguishing signs and symptoms :  sickness, malady infectious diseases a rare genetic disease heart disease

  3. 3 :  a harmful development (as in a social institution) sees the city's crime as a disease

diseased

play \-ˈzēzd\ adjective

Examples of disease in a Sentence

  1. He suffers from a rare genetic disease.

  2. a disease of the mind

  3. Thousands die of heart disease each year.

  4. They are working to stop the spread of disease in rural areas.

  5. The article cites intolerance as one of the most dangerous of society's diseases.

  6. He sees crime as a disease that too often plagues the poor and disadvantaged.

Recent Examples of disease from the Web

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

Origin and Etymology of disease

Middle English disese, from Anglo-French desease, desaise, from des- dis- + eise ease


First Known Use: 14th century



DISEASE Defined for English Language Learners

disease

play
noun

Definition of disease for English Language Learners

  • : an illness that affects a person, animal, or plant : a condition that prevents the body or mind from working normally

  • : a problem that a person, group, organization, or society has and cannot stop


DISEASE Defined for Kids

disease

play
noun dis·ease \di-ˈzēz\

Definition of disease for Students

  1. :  a change in a living body (as of a person or plant) that prevents it from functioning normally :  sickness


Medical Dictionary

disease

play
noun dis·ease \diz-ˈēz\

Medical Definition of disease

  1. :  an impairment of the normal state of the living animal or plant body or one of its parts that interrupts or modifies the performance of the vital functions, is typically manifested by distinguishing signs and symptoms, and is a response to environmental factors (as malnutrition, industrial hazards, or climate), to specific infective agents (as worms, bacteria, or viruses), to inherent defects of the organism (as genetic anomalies), or to combinations of these factors :  sickness, illness—called also morbus; compare health 1

diseased

\-ˈēzd\play adjective


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