Definition of disease
1 obsolete : trouble
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 : a harmful development (as in a social institution) sees the city's crime as a disease
diseasedplay \-ˈzēzd\ adjective
Examples of disease in a Sentence
He suffers from a rare genetic disease.
a disease of the mind
Thousands die of heart disease each year.
They are working to stop the spread of disease in rural areas.
The article cites intolerance as one of the most dangerous of society's diseases.
He sees crime as a disease that too often plagues the poor and disadvantaged.
Recent Examples of disease from the Web
The smallest particulates have been linked to premature death in people with heart or lung disease, heart attacks, irregular heartbeats, aggravated asthma and other lung problems.
There are two main health issues usually cited when talking about aluminum fears: Alzheimer’s disease and breast cancer.
Experts suspect a deadly Legionnaires’ disease outbreak was tied to the water.
Certain medications could keep you awake, particularly those that treat colds and allergies, heart disease, high blood pressure, and pain.
Sensing the utility of these devices, Alphabet Inc.’s Verily Life Sciences subsidiary recently unveiled a watch, called the Study Watch, that will collect data on users’ heart rate and movement for studies of a number of diseases.
Since November, an outbreak of a Third World disease has killed four more and sent 134 to the hospital — at catastrophic taxpayer expense.
Last month, Joshua Adam Reese pleaded not guilty by reason of metal disease or defect.
The idea that those of us with autoimmune diseases can be equated to an inconvenience affects not only our self-esteems, but promotes a negative narrative of disabled people echoed in films like Me Before You and Million Dollar Baby.
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 centurySee Words from the same year
DISEASE Defined for English Language Learners
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
Medical Definition of disease
: 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
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