The main difference between the parasite and virus is that a parasite is that organism that lives in another organism which is called the host, and often harms it on the other side a virus is a small infectious agent.
Parasites can reproduce by both sexual or asexual reproduction while viruses are unable to reproduce independently as they only reproduce by subordinating and controlling the living cells.
Parasites are eukaryotic organisms on the other hand viruses are not-cellular structures.
Examples of parasites are fleas, tapeworms, lanceolate fluke, ticks, heartworms, Trichinella on the other side examples of viruses are adenovirus, herpesvirus, reoviruses, rhabdovirus, parvovirus, and retroviruses.
The parasites live on the surface of the body of host or in different tissues and organs. They only can come in contact with the host when they want to feed or use its host as a permanent habitat. Viruses are active only in living cells.
The size of the parasites is from several micrometers like unicellular parasites to several meters like tapeworms whereas viruses are between 15 to 350 nm and can be easily seen with the help of electron microscope.
The parasite is an organism which feeds with parts or important products from another living organism known as host while a virus is a microscopic infectious pathogen which infects cells in living organisms.
Parasite
(Biology) An organism that lives and feeds on or in an organism of a different species and causes harm to its host.
Virus
Any of various submicroscopic agents that infect living organisms, often causing disease, and that consist of a single or double strand of RNA or DNA surrounded by a protein coat. Unable to replicate without a host cell, viruses are typically not considered living organisms.
Parasite
One who habitually takes advantage of the generosity of others without making any useful return.
Virus
A disease caused by a virus.
Parasite
One who lives off and flatters the rich; a sycophant.
Virus
A computer program or series of commands that can replicate itself and that spreads by inserting copies of itself into other files or programs which users later transfer to other computers. Viruses usually have a harmful effect, as in erasing all the data on a disk.
Parasite
A professional dinner guest, especially in ancient Greece.
Virus
A harmful or destructive influence
The pernicious virus of racism.
Parasite
(pejorative) A person who lives on other people's efforts or expense and gives little or nothing back.
Virus
A submicroscopic, non-cellular structure consisting of a core of DNA or RNA surrounded by a protein coat, that requires a living host cell to replicate, and often causes disease in the host organism; such agents are often classed as nonliving infectious particles and less often as microorganisms.
Parasite
(pejorative) A sycophant or hanger-on.
Virus
(uncountable) A quantity of such infectious agents
Parasite
(biology) An organism that lives on or in another organism of a different species, deriving benefit from living on or in that other organism, while not contributing towards that other organism sufficiently to cover the cost to that other organism.
Lice, fleas, ticks and mites are widely spread parasites.
Virus
A disease caused by such an infectious agent; a viral illness.
He's got a virus and had to stay home from school.
Parasite
A climbing plant which is supported by a wall, trellis etc.
Virus
(archaic) Venom, as produced by a poisonous animal etc.
Parasite
(historical) A retainer or companion of an ancient Celtic warrior, who praised him in song or poetry at gatherings; a bard.
Virus
(computing) A type of malware which can covertly transmit itself between computers via networks (especially the Internet) or removable storage such as disks, often causing damage to systems and data; also computer virus.
Parasite
(aviation) A component of a composite aircraft which is carried aloft and air-launched by a larger carrier aircraft or mother ship to support the primary mission of the carrier.
Virus
Any type of malware.
Parasite
One who frequents the tables of the rich, or who lives at another's expense, and earns his welcome by flattery; a hanger-on; a toady; a sycophant.
Thou, with trembling fear,Or like a fawning parasite, obey'st.
Parasites were called such smell-feasts as would seek to be free guests at rich men's tables.
Virus
(figurative) Any malicious or dangerous entity that spreads from one place or person to another.
Parasite
A plant obtaining nourishment immediately from other plants to which it attaches itself, and whose juices it absorbs; - sometimes, but erroneously, called epiphyte.
Virus
To send or infect an electronic device with a computer virus.
I'm just going to virus anyone who tries cheating on this game.
Parasite
An animal which lives during the whole or part of its existence on or in the body of some other animal, feeding upon its food, blood, or tissues, as lice, tapeworms, etc.
Virus
Contagious or poisonous matter, as of specific ulcers, the bite of snakes, etc.; - applied to organic poisons.
Parasite
An animal or plant that lives in or on a host (another animal or plant); the parasite obtains nourishment from the host without benefiting or killing the host
Virus
The causative agent of a disease, .
Parasite
A follower who hangs around a host (without benefit to the host) in hope of gain or advantage
Virus
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. The 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.
Virus
Fig.: Any morbid corrupting quality in intellectual or moral conditions; something that poisons the mind or the soul; as, the virus of obscene books.
Virus
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 or virus program. Such 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}.
Virus
(virology) ultramicroscopic infectious agent that replicates itself only within cells of living hosts; many are pathogenic; a piece of nucleic acid (DNA or RNA) wrapped in a thin coat of protein
Virus
A harmful or corrupting agency;
Bigotry is a virus that must not be allowed to spread
The virus of jealousy is latent in everyone
Virus
A software program capable of reproducing itself and usually capable of causing great harm to files or other programs on the same computer;
A true virus cannot spread to another computer without human assistance
The parasite is an organism that feeds and grows on its host while a virus is an infection causing pathogen that infects cells present in living organisms. Parasites are always eukaryotic while viruses are non-cellular organisms. The parasite can reproduce by both sexual and asexual reproduction methods on the other side viruses are not able to reproduce without the living cells of organisms as they control and use the living cells. In size, the parasite can be from micrometers to many meters long whereas the viruses size can be between the 15 to 350 nm. Parasites can be found on the surface of the host’s body as well as inside the host’s body while viruses are active inside the host’s body.
A parasite is an organism which lives in another organism that is known as the host and often harms it. A parasite depends on its host for survival. A parasite cannot live, multiply and grow without the host cell. Sometimes a parasite may kill the host. The parasite can also spread diseases. The parasite uses the host resources for its maintenance. Parasite varies widely in shapes and sizes. About 70 percent of parasites cannot be seen with the naked eye such as the malarial parasite. The parasite can spread diseases. Different parasites have different effects. Symptoms of diseases are skin bumps or rashes, weight loss, increased appetite, sleeping problems, aches and pains. There are three types of parasites, one is ectoparasite, and others are endoparasite and epiparasite.
A virus is a tiny infectious pathogen that replicates inside the living cells of an individual. Viruses can infect all types of life present in the ecosystem. They may affect animals and plants to microorganisms Including archaea and bacteria. There are a million types of viruses. Viruses are found in almost all types of lives. The viral particles are known as the virions. Virions of each virus consist of genetic material (DNA or RNA), a protein coat that is called capsid and an envelope of lipids. The shapes of viruses are from simple helical to more complex. Different types of viruses may affect the different host’s cells. A virus is unable to reproduce without the host. A virus is capable of reproducing within the cell of the host by making the use of the cellular processes of the host cell. Both prokaryotic and eukaryotic cell affected by the viruses. Depending on the presence of different types of nucleic acid, the viruses are divided into DNA viruses like adenovirus, parvovirus, herpesvirus and RNA viruses like reoviruses, rhabdovirus, a retrovirus. Based on different types of structure, viruses are divided into simple viruses that are made of nucleic acid and protein shell and complex viruses that are composed of nucleic acid, protein shell (capsid) and peplos that consist of lipoprotein and phospholipoprotein. Viruses are of two types:
