Buy at arrival
The aircraft arriving are needed form the departure for another flight. That helps passengers gauge how long it will be before their flight might takeoff.
Pre arrival (or pre-arrival) simply means before arrival.
http://en.wikipedia.org/wiki/Iranian_passportTake a look at this one. But it is much more recommended to apply for visa well before departure. Visa on arrival can get complicated.
Wayne Williams was the key Florida running back between Neal Anderson's departure after the 1985 season and Emmitt Smith's arrival during the 1987 season.
before
If it is open water, the basic information would be your location and time of departure, your intended course and destination along with your estimated arrival time. Include any stops you intend to make.
Chicken Flu has absolutely nothing to do with what currency is used. The currency of Germany is the Euro (€), and has been since 2002. Before that the currency was the Deutschmark.
Before Italy adopted the Euro, the Italian currency was the Lira.
Pre-arrival means when a guest have the guaranteed reservation in the hotel and he arrives hotel before the actual arrival time.
livre was the unit of currency in France before 1794...
Before the Euro was introduced in Europe, the French currency was measured in Francs.
The French currency before 2002 was the French franc. Since then it is the Euro.