atmosphériques

Atmosphériques is the plural form of the French adjective atmosphérique, meaning related to or belonging to the Earth's atmosphere. It is used to describe phenomena, processes, and objects that concern the air and the atmospheric layer, covering fields such as meteorology, environmental science, and air quality. The term emphasizes an atmospheric context rather than geological or extraterrestrial settings. The etymology traces back to the word atmosphere, which itself comes from Greek atmos (vapour) and sphaira (ball).

In common usage, atmosphériques appears in phrases like pression atmosphérique (atmospheric pressure), gaz atmosphériques (atmospheric gases), polluants atmosphériques (air pollutants), and phénomènes atmosphériques (weather or atmospheric phenomena). It can also modify terms that describe conditions, studies, or measurements conducted in the air, such as conditions atmosphériques or émissions atmosphériques. The word is predominantly found in scientific and technical language, but it also appears in journalism and policy writing when discussing weather, climate, or air quality within the atmospheric domain.