disease

noun dis·ease \ di-ˈzēz \
|Updated on: 14 Jun 2018
1 : 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
2 : a harmful development (as in a social institution)
  • sees the city's crime as a disease
3 obsolete : trouble

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


DISEASE Defined for English Language Learners

disease

  • : 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

noun dis·ease \ di-ˈzēz \
: a change in a living body (as of a person or plant) that prevents it from functioning normally : sickness

Medical Dictionary

disease

noun dis·ease \ diz-ˈēz \
: 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

play \-ˈēzd\ adjective


Seen and Heard

What made you want to look up disease? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

a figure representing a hated person

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a-closeup-of-a-sunflower
  • Which of the following words means “of or relating to summer”?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!