Episode Glossary

This article lists down the different terms and phrases used in each episode and its definition.

Term 1: El Psy Congroo
"El Psy Congroo" is the password that Rintarou Okabe uses whenever he ends a conversation. However, it is revealed that the supposed conversation he ended did not actually exist because Rintarou usually turns his phone off. The phrase is a combination of greek and latin meaning "To Harden the Mind". The exact origins of this phrase is unknown, but it is similar to a something posted by a BBS user: "La Jodaso Stiana".

Term 3: Metal Oopa
The Metal Oopa is one, if not the, rarest of a colletive vending item called Oopa. While this item is considered a child's type, some collect them for their rarity value. Revealed later on in the series, it is noted that the same Metal Oopa Mayuri finds in Episode 1 is actually life-saving in regards that if for not Mayuri would not to have bought the Oopa while on her way to find Okarin, she would have met the murderer and suffered the same fate as Kristina would have in that timeline - buying the Oopa diverts her and prevents her from walking into him, having Kristina die as intended. [citation needed] It is also said that the Oopa is also the same sort of metal used for the time machine in one of its contraptions. [citation needed]

Term 5: Hououin Kyouma
the protagonist of Steins;Gate. Okabe is a self-proclaimed mad scientist and often refers to himself under the alias of Hououin Kyouma, which is also the name he uses to introduce himself to other people. Mayuri and Daru refer to him by the nickname Okarin.

Term 12: University Forum
Both Rintarou and Itaru are students from Tokyo Denki University, and to acquire academic units, they held a seminar on the Akihabara Techno Forum.

Term 1: HENTAI
pervert, enough said.

Term 2: Christina (Kurisu-tina)
Another name given to Kurisu by Okarin.

Term 4: The Zombie
One of the many names given to Kurisu by Okarin. One could suggest that he enjoys teasing her (might develop into a relationship later on).

Term 6: Shining Finger
(kung fu skill from the protagonist of gundam G series) this is the nickname given to Moeka Kiryu by Okarin because she always communicates through text messages.

Term 3: The Mail that Leapt Through Time
This is Itaru Hashida's suggestion for a name that would describe the e-mails they send back in time. The phrase is in fact a reference to the movie "The Girl Who Leapt Through Time", a story of a girl who is able to travel back in time.

Term 4: D-Mail
Kurisu's suggestion for the term to be used for the messages they send back in time. It is a shortcut of Mayuri's suggestion "DeLorean Mail" and it eventually becomes the "official" term the Future Gadget Lab would use to pertain to the messages. DeLorean is probably a reference to the Back to the Future movie series, wherein the car used by the main characters is a DeLorean DMC-12.

Term 7: Event Horizon
Basically, the "point of no return" around a black hole - nothing can escape the gravitional pull, not even light.

Term 9: Super Hacka
Daru self proclaimed "Super Hacker" is called "Super Hacka" by Okarin.