Noun
Gyr
Abbreviation of gigayear.
The mass of the progenitor star for Procyon B was about main and it came to the end of its life some main Gyr ago, after a main-sequence lifetime of main Myr. Source: Internet
There are three archives that are included in the list; Bürgerarchiv Zug (Citizen's archive of Zug), Staatsarchiv Zug (State/Canton of Zug archive) and the Unternehmensarchiv der Landis & Gyr AG (Landis & Gyr AG company archives). Source: Internet