|Alpha||The leader of a Pride and it's stronger member. Alphas are born as such and are often related to some degree to Clan Masters.|
|Blood-born||A Bloodfire born inside a Clan from Bloodfire parents|
|Blood Oath||The most sacred promise among Bloodfires. They're honor-bound to keep it, and breaking it means immediate expulsion from Clan and Pride. It's also legally binding. For all these reasons, they don't make them lightly. It involves a precise ritual.|
|Bloodfire||A kind of humans who, due to a genetic characteristic, go through the Firing process that gifts them with abilities beyond normal humans, but that usually come with a price. Throughout history, they’ve been worshiped as gods, hunted as demons, revered as saviors, scorned as monsters… and everything in-between. Nowadays, they have become irreplaceable operatives in military, intelligence, law enforcement, rescue and medical services. Privileged by law and yet bound by it to compulsory public service, Bloodfires are always treading a fine line between acceptance and mistrust.|
|Bloodfire-Licensed||Mundane medical doctors and nurses with specialized training in treating Bloodfires, that work under, and are bound by, the same laws as Healers, Covenant laws. They have to sign the Agreement.|
|Bloodphobia||Fear or hatred of Bloodfires.|
|Clan||The higher-order organization of the Bloodfires, usually covering a wide territory and containing several Prides. A legal body, bound by Covenant Laws.
A Bloodfire saying says: “The Clan is your family, the Pride is your home.”
|Covenant||The laws that govern the relations between the Mundane governments and the Bloodfire Clans & Prides|
|Echo||Sometimes, a Bloodfire doesn't inherit a full Gift or it doesn't fully awake during the Firing, but a part of it does, giving him some small extra ability. Those are called Echoes.
For example, when Empathy runs in a family, some of its members who doesn't inherit it can get an Echo in the form of a gut feeling or intuition regarding people.
|The process though which Bloodfires get their gifts. It receives its name due to the extremely high fever that accompanies it. The process usually happens during adolescence, due to the hormonal changes it brings. However, there are cases of Nascents that fire up in adulthood, usually under heavy physical or emotional stress, or after finding their Mate. Bloodfires that have successfully finished the process are called “Fired”.|
|Gift||The generic name of the Bloodfire's abilities.|
|Half-Blood||The child of a Bloodfire and a Mundane. Can be Bloodfires (if they Fire during adolescence), Nascents (as adults) or Mundane Carriers (if they don't).|
|Halting||When a Firing is stopped without giving the individual any Gifts. It could be Spontaneous... or not!|
|HFA||Hormonal Firing Activator. A drug that can be used to force a Firing. Its existence is one of the Clans and Prides' best kept secrets.|
|Master||The leader of a Clan.|
|Master Kin||Direct blood descendants of a Master. Usually powerful. See also Prime.|
|Mundane carrier||A Mundane who carries recessive Bloodfire genes.|
|Mundane||Any human that’s not a Bloodfire.|
|Nascent||A Bloodfire born from Mundane carrier parents. Half-bloods can also be Nascents.|
|Gift Neutralizer||An implant that neutralizes Gifts, by inhibiting the production of several chemicals necessary for Gift expression and control. Usually used for emergency medical purposes.|
|Omega||Title given to the mates of Alphas, who are also the co-leaders of the Pride. Usually as powerful as the Alphas.|
|Pack||A temporary Bloodfire organization created by circumstances. Whenever several Bloodfires are thrown together, they instinctively organize themselves for support and protection, with the strongest Bloodfire acting as Alpha even if they're not technically one (Acting Alpha).
Their maximum size is about a dozen members.
|Pride||The local organization of Bloodifres inside a delimited territory like a city, led by an Alpha. Its members may belong to different Clans. A legal body, subject to Covenant laws.|
|Prime||The powerful children and heirs of Masters. Also applied, under the form of Omega Prime, to the Alpha Prime's mates.|
|Pride/Pack/Clan Bond||A special kind of emphatic bond that exists between the members of a Pack/Pride/Clan. Pack Bonds are usually weak. Pride Bonds are as strong as the Pride's Alpha is.|
|Potential||Mundanes that had been identified by genetic testing as possible Nascents.|
|Sworn Companion||Mundanes who are considered real friends/family by the Clans. Legally, they count as Mundanes for some things and as Bloodfires for others. It's a position that Clans don't give lightly.|
|Unfired||Bloodfires that haven not yet been through the Firing process. Usually applies to Blood-born children or relatives of known Nascents that have tested positive, since normally Nascents are only identified when they Fire up.|
|Alpha Urbs||Literally, "alpha city". The first city in the hierarchy of city-ships, with special abilities and prerogatives. In other words, Atlantis.|
|Atlantis||The first city-ship build by the Ancients. Alpha Urbs of Pegasus. Its Artifex is Lania.|
|Artifex||Generic name for the AI that control the city-ships. Lania is the Artifex of Atlantis, Dahut is the one for Ker-Ys.|
|Cathedra||The Ancient name for the Control Chair.|
|Emergency protocols||The emergency protocols are engaged in the case the Artifex of a city ship is damaged, to provide basic control until it was repaired. The access to the city becomes restricted to essential areas. They are active in The Tower (Ker-ys).|
|Ker-Ys||The first city-ship built by the Alterans after their arrival to the Pegasus Galaxy. She was built from the same basic matrix as Atlantis, but she developed on her own. Its Artifex is Dahut. Currently known as The Tower.|
|Legatus||Military commander of a city-ship, under the Praetor. Lorne holds the position on Atlantis.|
|Magister Architecti||"Master Engineer", the Ancient version of Chief Scientific Officer. McKay's position in Atlantis as of chapter 9.|
|Magister Medicus||"Master Doctor", the Ancient version of Chief Medical Officer. Beckett holds the position on Atlantis.|
|Porta Navis||Literally "gateship". The Ancient name for puddle jumpers, until Sheppard renamed them, to Lania's annoyance.|
|Potentia||The Ancient name for the Zero Point Module.|
|Praefectus||The power held by the Praetor. It can be temporary assigned to the Legatus if the Praetor becomes unable to fulfil his duties.|
|Praetor||Commander of an urbs navis, a Praetor is the main interface with the city's system (Artifex) and operation is highly limited without one. In Lania's words, "the Praetor defends and protects Atlantis and those who live in it, from internal and external threats." Only those belonging to Rhea's bloodline may become Praetors.
Sheppard is the Praetor of Atlantis.
|Terra||Alteran name for Earth.|
|Urbs navis||Literally, "city ship". The Ancient/Alteran name for the city-ships based on Atlantis model. Atlantis itself and Ker-Ys are to only two known to Earthians.|
|Ancestors||Name given to the Ancients/Alterans/Lanteans by the native inhabitants of Pegasus, who mostly revere them.|
|Blessed||Pegasus natives with the ATA gene. Their number is low and getting lower every generation.|
|Sacred City||Name given to Atlantis in the beliefs of the native inhabitants of Pegasus.|
|Spirit of the Sacred City||Name given to Lania in the beliefs of the native inhabitants of Pegasus.|
|The Tower||The name under which Ker-Ys is known in Pegasus.|