Gaseous a. : In the form, or of the nature, of gas, or of an aeriform fluid.

Gaseous a. : Lacking substance or solidity; tenuous.

Example:
How is it possible that Gaseous planets are entirely constructed of gas?

Taxonomy
gas, particles, pressure, molecules, perfect gas, gas particles, assumptions, gas molecules, models, Real gas, velocity, atoms, Ideal gas, boundary layer, container, quantity, specific volume, intermolecular forces.

Defination from the web:
Gaseous) Jump to: navigation, search. It has been suggested that Atomic gas be merged into this article or section. ... This page is about the physical properties of gas as a state of matter. For the uses of gases, and other ...