"In the 80's, everything was '-tron'! Megatron, Voltron, Tron... the movie. You get the idea."

"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 Rule of Cool. Sometimes it's a name, sometimes it's a device that doesn't really fit the suffix, but it's called that anyway.

Compare Thing-O-Matic, The Something Force, Law of Alien Names and Xtreme Kool Letterz. See also Trope 2000, where an object's name is suffixed with a large number to make it sound impressive (and is sometimes used with this trope to make the name even more outlandish).


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    Anime and Manga 

    Card Games 

    Comic Books 
  • Ultron, recurring foe of The Avengers. 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 Canon Discontinuity villains called the Destructrons.

  • TRON is so awesome that it doesn't need a prefix. The creator stated that the inspiration was a shortening of electronic. By complete coincidence there is a "tron" commandnote  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".
  • Orgasmatron from the Woody Allen movie Sleeper.
  • Speaking of Metatron, Alan Rickman plays one in Dogma.


    Live Action TV 
  • A number of monsters in Power Rangers, although 'crons might be more common. Lampshaded by the show's stunt team at Power Morphicon when they had 1 fan play a monster named "Hairgelatron".
  • Doctor Who has a Dalek that an ignorant collector calls "Metaltron".
  • 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.
  • Mitchell and Web parody it in the 'Vectron' sketch. See it here.note 
  • Metatron is the name of an important angel in Supernatural.

    Memetic Mutation 
  • Moetron is a mish-mash of several Moe archetypes.


    Professional Wrestling 
  • The big screen that's part of WWE's set is traditionally referred to as the Titantron, after the former name of the parent company, Titan Sports.
  • Hector Guerrero briefly worked as a masker wrestler named "Lasertron".
  • Chris Jericho's Highlight Reel segments featured the "obscenely expensive" Jeritron 3000

    Tabletop Games 

  • Absolutely everywhere in LEGO's many 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 Seibertron instead).
  • The Gobots have the homeworld Gobotron.

    Video Games 

    Web Comics 

    Web Original 

    Western Animation 

    Real Life 
  • Generically, any large-size video screen in a stadium is referred to as a 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 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.
  • 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.
  • The "Orgasmatron" is... a head massaging device.
  • Mid 20th century inventors of particle accelerators loved this trope, giving us cyclotron, synchrotron, Synchrocyclotron and betatron. (Also gyrotron, but this isn't a particle accelerator.)
  • 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.
  • 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 The Beatles, The Rolling Stones, The Moody Blues, King Crimson, David Bowie, Pink Floyd, Electric Light Orchestra, The Bee Gees, Yes, Genesis, Led Zeppelin, etc., etc. in The Sixties and The '70s.
  • There's an amusement park ride called the Gravitron (which, depsite the name, actually uses centrifugal force).
  • Since The '80s, 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.
  • Surprisingly, there is a Vectron in real life: It's a family of locomotives made by Siemens[1].
  • Logotron, a British publisher of educational software and, for a few years in the 1980s, computer games, was apparently named after its first product, an implementation of the programming language Logo for the BBC Micro.