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   virus

   /ˈvʌɪrəs/

   noun

   • 1. an infective agent that typically consists of a nucleic acid molecule in a protein coat, is too small to be seen by light microscopy, and is able to multiply only within the living cells of a host: "the hepatitis B virus"
   • ▪ an infection or disease caused by a virus: "I've had a virus"
   • ▪ a harmful or corrupting influence: "the virus of cruelty that is latent in all human beings"
   • 2. a piece of code that is capable of copying itself and typically has a detrimental effect, such as corrupting the system or destroying data.

   Word Origin late Middle English (denoting the venom of a snake): from Latin, literally ‘slimy liquid, poison’. The earlier medical sense, superseded by the current use as a result of improved scientific understanding, was ‘a substance produced in the body as the result of disease, especially one capable of infecting others’.

   Scrabble Points: 8

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2. People also ask

   What does virus mean?

   • virus, virus [masculine, singular]… vírus, vírus [masculine, dual]… Need a translator? Get a quick, free translation! VIRUS definition: 1. an extremely small piece of organic material that causes disease in humans, animals, and plants…. Learn more.

   VIRUS | English meaning - Cambridge Dictionary

   dictionary.cambridge.org/dictionary/english/virus

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   What is a virus and how does it work?

   • A virus is a small piece of genetic information in a “carrying case” — a protective coating called a capsid. Viruses aren’t made up of cells, so they don’t have all the equipment that cells do to make more copies of themselves. Instead, they carry instructions with them and use a host cell’s equipment to make more copies of the virus.

   Viruses: Definition, Types, Characteristics & Facts - Cleveland Clinic

   my.clevelandclinic.org/health/body/24861-virus

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   What is a complete set of viruses called?

   • The complete set of viruses in an organism or habitat is called the virome; for example, all human viruses constitute the human virome. A novel virus is one that has not previously been recorded.

   Virus - Wikipedia

   en.wikipedia.org/wiki/Virus

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   How are viruses classified?

   • Because of this, there is a virus which specializes on almost every single species on the planet. Scientists classify viruses based on how they replicate their genome. Some virus genomes are made of RNA, others are made of DNA. Some viruses use a single strand, others use a double strand.

   Virus - Definition, Structure, Classification, Examples | Biology

   biologydictionary.net/virus/

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   What is a virus in skin conditions?

   • Skin conditions. A virus is a small piece of genetic information in a “carrying case” — a protective coating called a capsid. Viruses aren’t made up of cells, so they don’t have all the equipment that cells do to make more copies of themselves.

   Viruses: Definition, Types, Characteristics & Facts - Cleveland Clinic

   my.clevelandclinic.org/health/body/24861-virus

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   What are the three types of viruses?

   • It is still traditional to divide viruses into three categories: those that infect animals, plants, or bacteria. Virtually all plant viruses are transmitted by insects or other organisms (vectors) that feed on plants. The hosts of animal viruses vary from protozoans (single-celled animal organisms) to humans.

   Virus | Definition, Structure, & Facts | Britannica

   www.britannica.com/science/virus

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3. www.britannica.com › science › virusVirus | Definition, Structure, & Facts | Britannica

   www.britannica.com › science › virus

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   Oct 10, 2024 · Virus, infectious agent of small size and simple composition that can multiply only in living cells of animals, plants, or bacteria. Viruses possess unique infective properties and thus often cause disease in host organisms. Learn about the history, types, and features of viruses.

4. en.wikipedia.org › wiki › VirusVirus - Wikipedia

   en.wikipedia.org › wiki › Virus

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   A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. [1] Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. [2] [3] Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity.

5. biologydictionary.net › virusVirus - Definition, Structure, Classification, Examples ...

   biologydictionary.net › virus

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   Aug 25, 2018 · A virus is a chain of nucleic acids (DNA or RNA) which lives in a host cell, uses parts of the cellular machinery to reproduce, and releases the replicated nucleic acid chains to infect more cells.

6. my.clevelandclinic.org › health › bodyViruses: Definition, Types, Characteristics & Facts

   my.clevelandclinic.org › health › body

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   Viruses are small germs (pathogens) that can infect you and make you sick. They can infect humans, plants, animals, bacteria and fungi. Each one infects only specific types of hosts. Viral infections in humans can cause no symptoms or make you extremely ill. Types of diseases they can cause include:

7. www.merriam-webster.com › dictionary › virusVirus Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › virus

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   a. : the causative agent of an infectious disease. b. : any of a large group of submicroscopic, infectious agents that are usually regarded as nonliving, extremely complex molecules or sometimes as very simple microorganisms, that typically contain a protein coat surrounding an RNA or DNA core of genetic material but no semipermeable membrane ...

8. dictionary.cambridge.org › dictionary › englishVIRUS | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   VIRUS definition: 1. an extremely small piece of organic material that causes disease in humans, animals, and plants…. Learn more.

9. theconversation.com › what-is-a-virus-how-do-theyWhat is a virus? How do they spread? How do they make us sick?

   theconversation.com › what-is-a-virus-how-do-they

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   Mar 13, 2020 · What is a virus? How do they spread? How do they make us sick? Published: March 12, 2020 11:42pm EDT. Are viruses alive? This illustration shows the shape of a coronavirus particle. CDC / Alissa...