->''"In the 80's, everything was '-tron'! [[{{Transformers}} Megatron]], {{Voltron}}, ''Film/{{Tron}}''... the movie. You get the idea."''
-->-- ''WebVideo/TheAngryVideoGameNerd''

"Tron" is Greek for a form of instrument (such as the "Metatron" from mythology was an instrument of {{God}}). These days, it's used as a suffix for advanced electronic technology in general, because of that latin word "Electron".

But this trope is about how in fiction, it's used as a suffix just for RuleOfCool. Sometimes it's a name, sometimes it's a device that doesn't really fit the suffix, but it's called that anyway.

Compare ThingOMatic, TheSomethingForce, LawOfAlienNames and XtremeKoolLetterz.
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!!Examples:

[[foldercontrol]]

[[folder:Anime and Manga]]
* When ''GoLion'' and ''DairuggerXV'' were [[CutAndPasteTranslation combined into a new series]] for the US, it was dubbed ''{{Voltron}}''.
* ''{{Noein}}'' features enemy mechas called "Destructrons", which is somewhat of a {{narm}} for some, as it doesn't really fit the series' [[SlidingScaleOfSillinessVersusSeriousness serious tone]].
* ''FlintTheTimeDetective'' had {{Mon}}s that did a FaceHeelTurn when stamped on the forehead by AppliedPhlebotinum, and "Tron" slapped at the end of their names.
* ''Anime/NurseWitchKomugi'': Magical Maid Koyori once turned [[MonumentalBattle Tokyo Big Sight]] into a giant TransformingMecha, calling it "Big Sightron". It got its own [[http://www.youtube.com/watch?v=wD3dtfJ4Vtw Animated OP]] in the DVD special features. (''Misspelled in this video as "Big Cytron"''.)
* The early Japanese {{Transformers}} [[DubNameChange renamed the Autobots and Decepticons]] to 'Cybertrons' and 'Destrons' respectively (this has been {{retcon}}ned to the US names as of the TransformersFilmSeries).
[[/folder]]

[[folder:Card Games]]
* ''MagicTheGathering'' has three lands that are collectively nicknamed the "Urzatron". Assemblying [[http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=83316 Urza's Tower]], [[http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=83314 Urza's Mine]], and [[http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=83315 Urza's Power Plant]] will greatly increase each land's mana production.
[[/folder]]

[[folder:Comic Books]]
* Ultron, recurring foe of Comicbook/TheAvengers. Could be a portmanteau of the prefix '''ultra-''' and '''tron'''.
* In addition to the roster of infamous {{Transformers}} characters, the rare ''Transformers In 3-D'' comic had a group of CanonDisContinuity villains called the Destructrons.
[[/folder]]

[[folder:Film]]
* ''Film/{{Tron}}'' is so [[RuleofCool awesome]] that it doesn't need a prefix. The creator [[WordOfGod stated]] that the inspiration was a shortening of elec''tron''ic. By complete coincidence there is a "tron" command[[note]]"trace on", to track the order of code execution[[/note]] from several varieties of the BASIC programming language.
* One of the ''Puppet Master'' films (no relation to the Heinlein book) had a doll called the "Decapatron".
* [[http://en.wikipedia.org/wiki/Orgasmatron Orgasmatron]] from the Woody Allen movie ''Sleeper''.
* Speaking of Metatron, Alan Rickman plays one in ''Film/{{Dogma}}''.
[[/folder]]

[[folder:Literature]]
* AWrinkleInTime: Meg's nickname is Megatron, many years before WesternAnimation/TheTransformers made it cool.
* The Alligatron from ''The Snarkout Boys and the Avocado of Death'' by Creator/DanielPinkwater.
* ''Literature/BreakfastOfChampions'' and later novels by Creator/KurtVonnegut have Barrytron, Limited, a weapons manufacturing company and the largest employer in Midland City. It was named after its founder, Fred T. Barry.
[[/folder]]

[[folder:Live Action TV]]
* A number of monsters in ''PowerRangers'', although 'crons might be more common. LampShaded by the show's stunt team at [[FanConvention Power Morphicon]] when they had 1 fan play a monster named "Hairgelatron".
* ''Series/DoctorWho'' has a Dalek that an ignorant collector calls "Metaltron".
* ''Series/{{Community}}'' has Boob-a-tron, a cardboard robot made by Abed in the hopes that someone will spill bong-water on it, causing it to become sentient.
* MitchellAndWebb parody it in the 'Vectron' sketch. [[http://www.youtube.com/watch?v=icTrzUuWlHI See it here]].
[[/folder]]

[[folder:Memetic Mutation]]
* Moetron is a mish-mash of several {{Moe}} archetypes.
[[/folder]]

[[folder:Music]]
* One of Music/{{Motorhead}}'s best-known songs is "Orgasmatron".
* The UK band Music/{{Ladytron}}, named after a song by Music/RoxyMusic.
* Music/{{Megadeth}}'s song "Psychotron".
[[/folder]]

[[folder:Professional Wrestling]]
* The big screen that's part of Wrestling/{{WWE}}'s set is traditionally referred to as the Titantron, after the former name of the parent company, Titan Sports.
[[/folder]]

[[folder:Tabletop Games]]
* One of the factions in {{Monsterpocalypse}} is Ubercorp International. They produce [[{{Robeast}} mechanical versions of enemy]] {{Kaiju}}. So what do they call the rip-off of the PlanetEater Gorghadra? Why, Gorghadtron of course!
[[/folder]]

[[folder:Toys]]
* Absolutely everywhere in {{LEGO}}'s many [[LEGOSpace space factions]] in the 1980s: Futuron, Blacktron, M-Tron, Unitron...
* Several ''{{Transformers}}'' have had this over the years, most notably Megatron and Galvatron, and the Transformers' home planet of Cybertron. Other notables from the toylines include Banzai-Tron, Magmatron, and Computron. In Japan, quite a few evil factions have been known as the Destrons, while their good counterparts were known as Cybertrons (the planet was called [[SpellMyNameWithAnS Seibertron]] instead).
* The [[WesternAnimation/ChallengeOfTheGoBots Gobots]] have the homeworld Gobotron.
[[/folder]]

[[folder:Video Games]]
* Protectrons in ''VideoGame/{{Fallout 3}}''
** Similiarly, Securitrons in ''VideoGame/FalloutNewVegas''.
* Positron from ''CityOfHeroes'', who's named after the real-life antimatter counterpart to the electron.
* The ''VideoGame/{{Syndicate}}'' games have a mind control device called the Persuadertron.
* In ''VideoGame/MySims'', one of the tasks you may get from Dr. F is to build a Zap-o-Tron. Apparently, its function is to sit around, and when a Sim touches it, it zaps them.
* The Enertron in ''VideoGame/ChronoTrigger'' gives you a full night's sleep in a few seconds. HP and MP restored! ...but you're still hungry.
* ''VideoGame/KingdomOfLoathing'' has the Annoy-o-Tron 5000, which emits low-frequency waves that enrage monsters all over the Kingdom, making them slightly tougher (and worth more experience).
* Tron Bonne from ''MegamanLegends'', though she's actually a human girl.
* Gadgetron in the ''VideoGame/RatchetAndClank'' series.
** Also, the Groovatron.
* Maimtron 9000, a clockwork HumongousMecha in ''[[SamAndMax Sam & Max Season 2]]''.
* Militron from ''[[VideoGame/TheLegendOfZeldaCDIGames Faces of Evil]]'' GO AND '''KILL!'''
* ''VideoGame/LittleBigPlanet 2'' has the Negativitron and, at one point, "Positivitron beams."
* Carltron, Professor Ruffleberg's butler [[spoiler:(and also the FinalBoss)]] from ''VideoGame/SecretOfEvermore''.
* The Gravitron in ''VideoGame/{{VVVVVV}}''.
* ''VideoGame/WorldOfWarcraft: The Burning Crusade'' features a [[MagiTek Fel]] [[HumongousMecha Reaver]] named Negatron, obviously as a reference to [[{{Transformers}} Megatron]].
** Cataclysm has the Omnitron Defense System, consisting of four Dark Iron Dwarf golems- [[ShockAndAwe Electron]], [[MagiTek Arcanotron]], [[KillItWithFire Magmatron]], and [[APoisonousPerson Toxitron]].
* Skeletron of ''VideoGame/{{Terraria}}'' though it's not actually mechanical. Skeletron Prime, on the other hand, is a definite example.
* ''Vectron'' for the UsefulNotes/{{Intellivision}} was inspired in gameplay and name by ''VideoGame/{{Tempest}}'', which had [[VectorGame vector graphics]]. (The "tron" suffix came to be because the game's WorkingTitle, ''Vectrix'', was too similar to the recently announced UsefulNotes/{{Vectrex}}.)
* ''The Psychotron'', an "Interactive Mystery Movie" from the mid-1990s.
* ''Quazatron'', the ZXSpectrum adaptation of ''VideoGame/{{Paradroid}}'', and its sequel ''Magnetron''.
* ''Newtron'', a Chunsoft/Enix game for the PC88, was named in reference to IsaacNewton.
* ''VideoGame/SuperPaperMario'' has Tiptron, a robotic ReplacementGoldfish for Tippi.
[[/folder]]

[[folder:Web Comics]]
* ''Webcomic/SluggyFreelance'' did an AffectionateParody of the FiveManBand HumongousMecha anime called ''Gofotron''.
* In ''Webcomic/{{xkcd}}'' [[http://xkcd.com/497/ #497]], Ron Paul evolves into... TRON PAUL!
[[/folder]]

[[folder:Web Original]]
* VideoGame critic, Jon Jafari A.K.A. JonTron.
* [[http://www.scp-wiki.net/scp-1370 SCP-1870]] of the Wiki/SCPFoundation once declared itself to be "[=ShivaTron=], Despoiler of Mirth"... [[EpicFail shortly before being knocked over by a potted plant.]]
[[/folder]]

[[folder:Western Animation]]
* ''WesternAnimation/DextersLaboratory''
** Dexter made a device in his laboratory he called the "Beard-A-Tron" to grow one for him.
** Interestingly it never comes up in the ''Film/{{Tron}}'' episode.
* One episode of ''WesternAnimation/DarkwingDuck'' has positrons and negatrons, described as "the basic building blocks of good and evil".
* The ''SpongeBobSquarePants'' episode "SB-129" had Squidward traveling to the future and meeting a cyborg version of Spongebob named Spongetron.
* [[BuzzLightyearOfStarCommand Evil Emperor Zerg's]] Zergatronic Mega Ray.
* [[{{Transformers}} Megatron]].
* In ''{{Rugrats}}'', Angelica once imagined herself as Angelitron. Her doll Cynthia became Cynthiatron [[RunningGag but remained just as defunct]].
* ''WesternAnimation/MyLittlePonyFriendshipIsMagic'': The Episode ''Wonderbolts Academy'' brings the Dizzitron, which makes you dizzy.
[[/folder]]

[[folder:Real Life]]
* Generically, any large-size video screen in a stadium is referred to as a [[BrandNameTakeover Jumbotron]].
** Sony used -tron before the (original, non generic) [=JumboTron=], with their Trinitron aperture grille [=CRTs=].
** The University of Texas has one that is over 7,000 square feet. It's nicknamed the Godzillatron.
* [=ThinkGeek=] sells a toy called the [[http://www.thinkgeek.com/gadgets/electronic/8c52/ Annoy-O-Tron]]. It's a roughly inch-square device you can magnetically affix to anything metallic or just hide in any given cranny, which randomly beeps every so often.
** [[http://www.thinkgeek.com/gadgets/electronic/b278/ The latest version]] can also imitate a cricket, emit an "incoming IM sound," or operate on [[http://en.wikipedia.org/wiki/Mosquito_tone a frequency that only younger people can hear]].
* The Maltron ergonomic keyboard, named after one of its inventors, Lilian Malt. No, the other inventor's name isn't Ron.
** Similarly the Emitron line of early (1930s/50s) television cameras were named after the manufacturer EMI.
* Not related to high-tech, but the Modern Hebrew word for circus is "ziratron," from "zira," ring (i.e. the shape), and "teatron," theater (from the Ancient Greek "theatron"). Also don't forget Metatron, an angel in Judaism. This stems from the original Greek root.
* "Waitron" is a gender-neutral version of "Waiter/Waitress." A professor I know once claimed to have coined the phrase as a joke, something about equating being described with genderless terminology and being a genderless automaton. [[SpringtimeForHitler He didn't expect the term to catch on]].
* The "Orgasmatron" is...a head massaging device.
* The Cyclotron, a type of particle accelerator.
** The [[NamesTheSame Cyclotron]], a motorcycle the WesternAnimation/SwatKats use.
* The device inside your microwave oven that produces the microwaves is technically known as a Magnetron. Which is a name just begging to be used by a supervillain.
** If Danny Ocean qualifies, an actual magnetron ''was'' used by a supervillain in ''Ocean's Thirteen''.
* Let's not forget the [[http://en.wikipedia.org/wiki/Mellotron Mellotron]], a tape-based, pre-sampler keyboard instrument that was capable of reproducing realistic recorded sounds, especially strings, flutes and choirs. Popularized by the likes of Music/TheBeatles, Music/TheRollingStones, Music/TheMoodyBlues, Music/KingCrimson, Music/DavidBowie, Music/PinkFloyd, Music/ElectricLightOrchestra, Music/TheBeeGees, Music/{{Yes}}, Music/{{Genesis}}, Music/LedZeppelin, etc., etc. in TheSixties and TheSeventies.
* There's an amusement park ride called the Gravitron (which, depsite the name, actually uses centrifugal force).
* Since TheEighties, schools have used Scantron papers to streamline the grading process for multiple-choice exams.
* The Vectron is a modern electric locomotive.
* Vestron, a 1980s VHS distribution company, took the first half of its name from the Roman goddess Vesta.
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