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virus

virus

857 3.2
A very small germ that can only live inside cells and often causes illness
  • noun
  • /ˈvaɪrəs/
  • Specialized
translation icon : virus
  • The human body can be invaded by the influenza virus via the nose or mouth.
  • influenza virus
  • virus infection
  • transmission of the virus

What were your thoughts then when you first heard about this virus in Wuhan?

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Examples

  • A very common cause of rhinitis is the cold virus, in which symptoms are self-limiting.

    Academic text (2011)
  • But evidence from Kitgum suggested the virus may also spread directly from person to person.

    Academic text (2015)
  • We must continue to control the virus and save lives.

  • Well, there are thousands of viruses out there.

  • As winter draws in, this virus is on the offensive.

  • What were your thoughts then when you first heard about this virus in Wuhan?

  • We developed measures of exposure to the H1N1 virus, susceptibility, and access to health care.

    Academic text (2011)
  • The doctor explained how the virus affected the respiratory system and caused symptoms like coughing and fever.

  • Researchers are studying how this virus spreads through contaminated surfaces and close contact.

  • Last year, an outbreak of the virus in the community led to increased health warnings and vaccinations.

Synonyms

pathogen
vsvirus
  • Specialized
50 5.7

A tiny germ like a virus or a bacterium that causes disease in people and animals

is narrower, meaning a tiny particle needing host cells to replicate
infectious agent
vsvirus
  • Specialized
5 4.2

A tiny living thing like a virus or bacterium that can make people and animals sick

is a tiny agent that multiplies only inside living cells
infective agent
vsvirus
  • Specialized
1 5.1

A very small thing, living or not, that can make people sick

is a microscopic entity that must replicate inside living cells

Antonyms

antibody
  • Specialized
72 3.3

A protein made by the body that helps destroy germs like bacteria and viruses

Compounds

computer virus
  • Specialized
16 3.5

A program that copies itself and damages files on a computer

West Nile virus
  • Specialized
8 4.3

A virus spread by mosquito bites that can make people and animals sick and sometimes cause brain infection

Ebola virus
  • Specialized
7 3.4

A very dangerous virus that causes severe bleeding and high fever in people and animals

smallpox virus
  • Specialized
3 3.9

A tiny germ that causes the serious disease smallpox in people

anti-virus program
  • Specialized
3 2.9

A tool that finds and removes harmful software from a computer

virus infection
  • Specialized
1 3.3

An illness caused by a virus that makes you feel sick

1 3.4

A virus that attacks the body's defence system by destroying important immune cells and causes AIDS

animal virus
  • Specialized
1 3.6

A virus that infects animals, not plants or bacteria

Lassa virus
  • Specialized
1 6.5

A germ that causes Lassa fever, a serious disease in West Africa

Marburg virus
  • Specialized
1 8.0

A very infectious virus that causes a serious fever illness in people and monkeys

herpes virus
  • Specialized
1 3.9

A germ that causes painful sores on the skin, often around the mouth or genitals

herpes simplex virus
  • Specialized
1 3.8

A germ that causes cold sores and genital herpes

hepatitis A virus
  • Specialized
1 3.9

A virus that infects the liver and causes liver inflammation

human papilloma virus
  • Specialized
1 4.2

A group of viruses that infect skin, mouth, or genitals and can cause warts and sometimes cancer

1 4.9

A germ that causes chickenpox and shingles in people

variola virus
  • Specialized
1 5.9

A very small germ that causes smallpox in people

8.9

An offensive name for COVID-19 that blames China and can hurt Asian people

Coxsackie virus
  • Specialized
7.4

A small germ that often causes hand, foot, and mouth disease in children

Epstein-Barr virus
  • Specialized
4.7

A common virus that often causes a sickness that makes you very tired and is linked to some cancers

A virus that lives in mice or rats and can make people sick

Machupo virus
  • Specialized
9.9

A virus that causes a serious bleeding fever in people in Bolivia and spreads from rodents

A virus that causes chickenpox and shingles in people

herpes zoster virus
  • Specialized
5.3

A virus that causes the painful skin rash shingles

A virus that infects people and can cause a blood cancer of white blood cells called T cells

Junin virus
  • Specialized
8.9

A virus that causes a serious fever with bleeding in Argentina and spreads to people from rats and mice

myxoma virus
  • Specialized
9.2

A virus that causes soft, jelly-like tumors in rabbits and sometimes humans

6.1

A virus that infects the breathing tubes of young children and can cause serious chest infections like pneumonia

6.2

A virus that makes onion plants grow poorly and their leaves turn yellow

A sudden spread of a new illness caused by a virus among people

parainfluenza virus
  • Specialized
4.3

A virus that causes infections of the nose and throat, like the common cold, often in young children

plant virus
  • Specialized
3.2

A tiny germ that enters plants and makes them sick

polyoma virus
  • Specialized
7.4

A virus that causes tumors in animals and scientists use in cancer research

6.1

A germ that makes potato plants small and their leaves turn yellow

tobacco mosaic virus
  • Specialized
4.7

A virus that infects tobacco and other plants, making leaves show light and dark patches

slow virus
  • Specialized
7.3

A germ that stays inactive in the body for a long time before causing symptoms

tumor virus
  • Specialized
5.8

A small germ that can make people or animals grow tumors

variola major virus
  • Specialized
7.7

A very deadly form of smallpox that often causes death

variola minor virus
  • Specialized
6.7

A milder form of smallpox that kills about one person in a hundred

A tiny germ that causes brain inflammation in people and animals and spreads by infected mosquitoes

woke mind virus
  • Offensive
9.9

An insulting phrase for strong social justice ideas seen as spreading online and changing people's views

wound tumor virus
  • Specialized
7.0

A plant virus spread by small jumping insects that causes growths on plants

How Complex

animal
1.0
multicellular
  • Specialized
3 4.3
eucaryote
  • UK
8.9
bacterium
  • Specialized
31 5.3
virus
  • Specialized
857 3.2

Surface Forms

virus singular
viruses plural

Etymology

The word virus comes from the old Latin word virus, which meant 'poison' or 'slimy liquid'. That image helps: a biological virus is a very small agent that can spread and cause illness inside living cells.