Metahuman
In DC Comics' DC Universe, a metahuman is a human with superpowers. The term is roughly synonymous with both "mutant" and "" in the Marvel Universe and "posthuman" in the Wildstorm and Ultimate Marvel Universes. In DC Comics, the term is used loosely in most instances to refer to any human-like being with extranormal powers and abilities, either cosmic, mutant, science, mystic, skill or tech in nature. A significant portion of these are normal human beings born with a genetic variant called the "metagene", which causes them to gain powers and abilities during freak accidents or times of intense  psychological distress. The term was first used as a reference to superheroes in 1986 by author George R. R. Martin, first in the "Superworld" role playing system, and then later in his "Wild Cards" series of novels. DC Comics. The term was first used by a fictitious race of extraterrestrials known as the Dominators when they appeared in DC Comics' "Invasion!" mini-series. The Dominators use this term to refer to any human native of the planet Earth with "fictional superhuman abilities". The prefix ""meta-"" simply means ""beyond"", denoting powers and abilities beyond human limits. Metahuman may also relate to  an individual who has exceeded what is known as "The Current Potential", meaning one's ability to move matter with mind. (See Telekinesis). Section::::"Xenobrood". Before the White Martians arrived on Earth, Lord Vimana, the Vimanian overlord from the Xenobrood mini-series, claimed credit for the creation of the human race both normal and metahuman, due to their introduction of superpowered alien genetic matter into human germline DNA. The Vimanians in the series forced their super powered worker drones to mate with humanity's ancestors "Australopithecus afarensis" (3 million years ago), and later "Homo erectus" (1.5 million years ago) in order  to create a race of superpowered slaves. The metagene. The "Invasion!" miniseries provided a concept for why humans in the DC Universe would survive catastrophic events and develop superpowers. One of the Dominators discovered that select members of the human race had a "biological variant," which he called the metagene (also spelled "meta-gene"). This gene often lay dormant until an instant of extraordinary physical and emotional stress activates it. A "spontaneous chromosomal combustion" then takes place, as the metagene takes the source of the biostress – be it chemical, radioactive or whatever – and turns the potential catastrophe into a catalyst  for "genetic change," resulting in metahuman abilities. DC does not use the "metagene concept" as a solid editorial rule, and few writers explicitly reference the metagene when explaining a character's origin. DC also has characters born with superhuman abilities, suggesting the metagene can activate spontaneously and without any prior appearance in the ancestry. One well-known example involves Dinah Laurel Lance, the second Black Canary. Although her mother (Dinah Drake Lance, the original Black Canary) was a superhero, neither she nor her husband Larry Lance were born with any known metagenes. However, Dinah Laurel "was" born with a metagene , the infamous ultrasonic scream known as the Canary Cry. The prefix "meta-", in this context, simply means "beyond"—as in "metastable", which is beyond regular stability and ready to collapse at the slightest disruption, or "metamorphosis", which is the state of going beyond a single shape. In the DC comic miniseries "Invasion!", the Dominators point out that the metagene is contained inside every cell of the human body. In the DC Comics universe, metahuman criminals are incarcerated in special metahuman prisons, like the prison built on Alcatraz Island, which is outfitted not only with provisions to hold criminals whose powers are  science- and technology-based, but even mystical dampeners to hold villains (including "Homo magi") whose powers are magic-based. Prisoners in this facility are tagged with nanobyte tracers injected into their bloodstream that allow them to be located wherever they are. It is possible for individuals skilled in science and biology to manipulate, dampen or modify the activities of the metagene. During the Final Crisis, while the Dominators were devised a "Gene Bomb" able to accelerate the metagene activity to the point of cellular and physical instabilities, an "anti-metagene virus" was spread as a last-ditch weapon in the  invaded Checkmate quarters. This "metavirus" has the opposite effects of the Gene Bomb, curbing and shutting down the metagene and stripping the metahumans of their powers for an unspecified amount of time. White Martians. The genetic potential for a future metagene was discovered in ancient "Homo sapiens"' DNA (500,000 - 250,000 years ago) by the White Martian race. The White Martians performed experiments on these primitive humans, changing how the metahuman phenotype was expressed by the metagene. Due to their experiments, they altered the destiny of the human race. Whereas before, evolution would have eventually made mankind into a race of  superhumans similar to the Daxamites and Kryptonians, now only a select few humans would develop metahuman powers. As punishment for this, the group of renegades known as the Hyperclan was exiled to the "Still Zone", a version of the Phantom Zone. Metavirus. The White Martians also created a metavirus, a metagene that could be passed from host to host via touch. This metavirus was responsible for the empowerment of the very first Son of Vulcan. From that time onwards, the Sons of Vulcan passed the metavirus down in an unbroken line, sworn to hunt and kill the White Martians. Population . The terms "meta" and "metahuman" do not refer only to humans born with biological variants. Superman and the Martian Manhunter (aliens) as well as Wonder Woman (a near-goddess) and Aquaman (an Atlantean) are referred to in many instances as "metahumans." It can refer to anyone with extraordinary powers, no matter the origins and including those not born with such power. According to "Countdown to Infinite Crisis", roughly 1.3 million metahumans live on Earth, 99.5% of whom are considered "nuisance-level" (such as kids who can bend spoons with their minds and the old lady "who keeps hitting at Powerball ). The other 0.5% are what Checkmate and the OMACs consider alpha-, beta- and gamma-level threats. For example, Superman and Wonder Woman are categorized as alpha-level, while Metamorpho is considered a beta-level and the Ratcatcher is considered a gamma-level. However, since the destruction of the Source Wall, the number of Alpha and Beta level metahumans, as well as the general metahuman population, were sharply increased by the new cosmic radiations affecting the universe. Exo-gene. The 52" miniseries introduced a toxic mutagen called the Exo-gene (also referred to as the Exogene). It is a toxic gene  therapy treatment created by LexCorp for the Everyman Project, which creates metahuman abilities in compatible non-metahumans. It first appeared in "52" #4, with the first announcement of the Everyman Project in "52" #8. The project was controversial, creating unstable heroes that gave Luthor an "off switch" for their powers, creating countless mid-flight deaths. Section::::"Dark Nights: Metal". In "Road to Dark Nights: Metal", the Joker revealed to Duke Thomas that the term "meta" originated from a rudimentary hospital program used to automatically flag Nth metal toxicity found in a person's bloodstream, similar to iron or zinc, the “meta ” being short for the "metal" it detected. This natural toxicity is the "variant" that changes the individual's DNA results in the metagene and its various heightened abilities and powers. The lineage of metahumans and their origins can be traced by this Nth Metal connection, dating all the way back to three tribes from the earliest known era of humanity; the Bird Tribe, the Wolf Tribe and the Bear Tribe. When the Totality crashed to Earth and introduced the various forms of Heavy Metal and other mysterious forces into the world, The Bear tribe and Vandar Adg of the Wolf  Tribe were the first ones to encounter the Totality. They were all mutated by the radiation of the Totality, granting them immortality and making them the world’s earliest iteration of metahumans. Marvel Comics. The word "metahuman" is often attributed to the DC Universe, while superhuman beings in the Marvel Universe are referred to as either mutants or mutates. However, both DC and Marvel Comics have made use of the term "metahuman" and "mutant" in their universes. The first use of the term 'metahuman' in the Marvel Universe occurred in "New Mutants Annual" #3, written by Chris Claremont, published in  1987, in which a Russian security officer describes the protagonists as "metahuman terrorists". Amalgam Comics. In the short-lived DC/Marvel Comics "Amalgam Comics" crossover event, in "JLX" #1 (April 1996) (combining DC's "Justice League" and Marvel's "X-Men"), metahumans are replaced with metamutants (a portmanteau of DC's metahumans and Marvel's mutants) who are said to carry a 'metamutant gene'. In other media. Television. DC animated universe. In the animated version of the DC universe, the term metahuman is used in the animated TV series "Static Shock". Section::::"Birds of Prey". On the television series "Birds of  Prey", metahumans included heroines the Huntress and Dinah Lance. New Gotham has a thriving metahuman underground, mostly made of metahumans who are trying to live their own lives, although a self-hating metahuman, Claude Morton (Joe Flanigan), tries to convince the police that all metahumans are evil. In "Birds of Prey", metahumans are treated seemingly as a race or species; the Huntress is described as being "half-metahuman" on her mother's side. Section::::"Smallville". On the television series "Smallville", metahumans can occur naturally. However, the majority are the result of exposure to kryptonite, which in the "Smallville" universe can turn  people into superpowered "meteor freaks", often with psychotic side effects. For many seasons of "Smallville", all superpowered people other than Kryptonians were so-called meteor freaks, but as the show went on, it began to explore further corners of the DC Universe. Non-kryptonite metahumans include the "Smallville" versions of Aquaman, the Flash, the Black Canary, and Zatanna. Section::::"Young Justice". On the animated series "Young Justice", the aliens known as the Kroloteans have frequently used the term and have even researched into the discovery of a "metagene" by abducting and testing on random humans. The alien reach conduct similar experiments  and kidnap a cadre of teen runaways to test for the metagene, leading several of these individuals to develop superpowers. In the episode "Runaways," a S.T.A.R. Labs scientist surmises that the gene is "opportunistic" in as much as it causes its user to develop powers seemingly based on their personal experiences or surrounding depending on circumstances. In the a recurring plot-point is the trafficking of metahumans after humans learn to detect and activate metagene after the Reach invasion. In some cases, the metagene in some families is shown to be the source of similar abilities, as with Terra, Geo -Force, and their maternal uncle Baron Bedlam. In "Evolution", it is revealed Vandal Savage was the first metahuman because of the fallen meteor which bestowed him a healing factor and super-intelligence on Mongolia during the Pleistocene. Arrowverse. In the Arrowverse family of live-action shows, "metahuman" is used more narrowly than in the comics, typically referring to a human being who becomes transhuman and has uncanny abilities, often acquired following some kind of strange accident. Section::::"Gotham". In the television series "Gotham", Professor Hugo Strange experiments with dead (and alive) bodies of criminals, Arkham Asylum patients, and civilians under the  orders of the Court of Owls. There, Strange gives his victims superhuman abilities such as shapeshifting (Clayface), mind control (Fish Mooney) and super strength (Azrael). By the end of Season 2, Strange's victims escape and wreak havoc in the city. Throughout the series, the metahumans are commonly referred to as Strange's Monsters, simply Monsters (an allusion to the miniseries "Dark Moon Rising: Batman & the Monster Men"), or the Freaks from Indian Hill.