gas giant

This term is a specific astronomical classification used to distinguish massive planets from terrestrial, rocky planets. It carries a scientific register and is typically used in the context of planetary science and astrophysics to describe the composition and scale of celestial bodies.

While the term is often used interchangeably with "jovian planet," it specifically emphasizes the gaseous nature of the planet's bulk. In a broader astronomical context, it is important to distinguish gas giants (like Jupiter and Saturn) from ice giants (like Uranus and Neptune), although both are often grouped together as giant planets.