. . "the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container"@en-us . . . . "113658219"@en-us . "gas"^^ . . . "gas"@en-us . . . . . . . . . "14481080-n"^^ . . . "gaseous state"@en-us . "0"^^ . . . . . . . . . . "114481080"^^ . . . . . "0"^^ .