**Atmosphere**: The layers of gases surrounding a celestial body.

**Air**: Mixture of gases essential for breathing.

**Mood/Feeling**: Emotional ambiance or vibe in an environment.

**Scientific Context**: Prefix relating to atmospheric phenomena or studies.

**Pressure System**: Refers to air pressure conditions in meteorology.

**Atmospheric**: Relating to the Earth's atmosphere.

**Atmometer**: Instrument for measuring evaporation rates.

**Atmolysis**: Separation of gases by diffusion through a membrane.

**Atmopause**: Boundary between atmosphere and outer space.

**Atmospherics**: Natural or artificial electrical disturbances in the atmosphere.