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Disease Definition, Types, and Examples (3 meaning)
Meaning 1：illness (disease)
disease
/dɪˈziːz/
n.
An illness that makes a person's body not work properly, like a cold or something more serious.
illness
➕
/ˈɪl.nəs/
n.
A condition that disrupts the normal functioning of the human body, ranging from mild to severe, often requiring medical attention.
📘 Details & Usage
📖 Root Explanation
From Old French 'desaise' (discomfort), from 'des-' (away) + 'aise' (ease).
💡 Mnemonic
Think 'dis-ease' — when your body is not at ease, you have a disease.
📖 Example
My grandma takes medicine every day to manage her chronic disease.
My grandma takes medicine every day to manage her chronic disease.
🔗 Collocations
chronic disease – A long-lasting medical condition that persists over time, such as diabetes or heart disease.
infectious disease – An illness caused by a pathogen (like bacteria or viruses) that can spread from one person to another.
heart disease – A range of conditions affecting the heart's structure and function, often related to blood vessel problems.
🔄 Synonyms
sickness (n.) – A state of being ill, often used interchangeably with disease in everyday language.
ailment (n.) – A minor or chronic illness that causes discomfort but is usually not life-threatening.
malady (n.) – A formal or literary term for a disease or disorder, often implying a serious condition.
🚫 Antonyms
🌱 Derivatives
diseased (adj.) – Affected by or containing a disease.
disease-free (adj.) – Not having any disease; healthy.
📖 Cultural Story
Originating in the 14th century from Old French 'desaise' meaning lack of ease, it replaced older English 'sickness' in medical contexts, reflecting a shift toward describing illness as a disruption of normal bodily comfort.
Meaning 2：animal sickness (disease)
disease
/dɪˈziːz/
n.
An illness that affects animals, such as a sickness in pets or a widespread infection on a farm.
animal sickness
➕
/ˈæn.ɪ.məl ˈsɪk.nəs/
n.
An illness or disorder that affects animals, including pets, livestock, or wildlife, often requiring veterinary care or quarantine measures.
📘 Details & Usage
📖 Example
The vet vaccinated my puppy to protect it from common canine diseases.
The vet vaccinated my puppy to protect it from common canine diseases.
🔗 Collocations
canine disease – A disease that specifically affects dogs, like parvovirus or distemper.
livestock disease – An infectious illness that spreads among farm animals, such as foot-and-mouth disease.
vaccinate against disease – To administer a vaccine to an animal to prevent a specific disease.
🔄 Synonyms
affliction (n.) – A cause of pain or suffering in animals, often used for serious conditions.
epidemic (n.) – A widespread occurrence of a disease in a population of animals at a particular time.
🚫 Antonyms
health (n.) – The state of being free from disease in animals; good physical condition.
🌱 Derivatives
diseased (adj.) – Suffering from a disease, used for animals as well.
Meaning 3：plant disease (disease)
disease
/dɪˈziːz/
n.
A problem that makes a plant unhealthy, like leaves turning yellow or fruit rotting, often caused by fungi or bacteria.
plant disease
➕
/plænt dɪˈziːz/
n.
A harmful alteration in the normal growth or function of a plant, caused by pathogens (fungi, bacteria, viruses) or environmental factors, leading to symptoms like spots, wilting, or rot.
📘 Details & Usage
📖 Example
The apple trees in our orchard were saved after we treated the fungal disease affecting their leaves.
The apple trees in our orchard were saved after we treated the fungal disease affecting their leaves.
🔗 Collocations
fungal disease – A plant disease caused by fungi, often resulting in powdery mildew, rust, or blight.
plant disease control – Methods used to prevent or manage diseases in crops, such as fungicides or crop rotation.
bacterial disease – A plant disease caused by bacteria, leading to symptoms like leaf spots and wilting.
🔄 Synonyms
🚫 Antonyms
health (n.) – The state of a plant being free from disease, with normal growth and vigor.
🌱 Derivatives
diseased (adj.) – Showing signs of disease, used for plants with spots, rot, or other symptoms.
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