Definition from online dictionary

Virus

Virus Vi"rus, n. [L., a slimy liquid, a poisonous liquid, poison, stench; akin to Gr. ? poison, Skr. visha. Cf. Wizen, v. i.]

1. (Med.) Contagious or poisonous matter, as of specific ulcers, the bite of snakes, etc.; -- applied to organic poisons. [Archaic]
[1913 Webster +PJC]

2. the causative agent of a disease, . [obsolescent]
[PJC]

3. any of numerous submicroscopic complex organic objects which have genetic material and may be considered as living organisms but have no proper cell membrane, and thus cannot by themselves perform metabolic processes, requiring entry into a host cell in order to multiply. The simplest viruses have no lipid envelope and may be considered as complex aggregates of molecules, sometimes only a nucleic acid (DNA or RNA) and a coat protein. They are sometimes viewed as being on the borderline between living and nonliving objects. They are smaller than living cells in size, usually between 20 and 300 nm; thus they pass through standard filters, and were previously referred to as filterable virus. manifestations of disease caused by multiplication of viruses in cells may be due to destruction of the cells caused by subversion of the cellular metabolic processes by the virus, or by synthesis of a virus-specific toxin. Viruses may infect animals, plants, or microorganisms; those infecting bacteria are also called bacteriophages. Certain bacteriophages may be non-destructive and benign in the host; -- see bacteriophage.
[1913 Webster +PJC]

4. Fig.: Any morbid corrupting quality in intellectual or moral conditions; something that poisons the mind or the soul; as, the virus of obscene books.
[1913 Webster]

5. (Computers) a program or segment of program code that may make copies of itself (replicate), attach itself to other programs, and perform unwanted actions within a computer; also called computer virus virus program. programs are almost always introduced into a computer without the knowledge or assent of its owner, and are often malicious, causing destructive actions such as erasing data on disk, but sometime only annoying, causing peculiar objects to appear on the display. The form of sociopathic mental disease that causes a programmer to write such a program has not yet been given a name.
Compare trojan horse[3].
[PJC]

-- From The Collaborative International Dictionary of English v.0.48

Virus

n. organic, contagious, poisonous matter, by which disease or poison is introduced into the system;

something that acts as a moral poison;

evil influence.

From Webster's Complete Reference Dictionary and Encyclopedia
Copyright 1944 and published by The World Publishing Company in the United States.

Coronavirus
vaclib.org/links/Coronavirus

Note: Virus Versus Exosome page is here.
A "ton" of information about virus on that page.

Germs - the mistaken enemy
www.vaclib.org/sites/debate/germs.html

BACTERIA, INC. By Cash Asher - Vaccination Liberation Information
www.vaclib.org/basic/bacteria.htm

Virus - Slippery changing definition, Polio and Smallpox Truths
http://www.shotsoftruth.com/

Microbiome
Microbiome links

The Truth Archive
Video
Viruses: A Scientific Fallacy - The Infectious Myth | James McCumiskey & David Crowe
David discusses the possibility with James McCumiskey of Ireland, the possibility that there are no viruses, and that this is a decades or centuries old fraud or error. James has endeavored to get proof of the existence of viruses from the virus ...
https://www.bitchute.com/video/XbO161an5rd8/

FaceBook Measles Document
Biologist Proves Measles Isn't A Virus, Wins Supreme Court Case Against Doctor
Does Measles Virus Exist?

Global Research, July 24, 2020
The virus misconception is at the heart of Operation Coronavirus, because without the concept of germ theory and without the horror story of the killer virus, most people would not buy the NWO-directed official narrative of COVID propaganda.

Read rest of original story in webpage here: PDF with diagrams