The Clue
Some are inert (5 letter answer)
The Answer
GASES
Tags
Notes
The answer GASES is uncommon, appearing about once every 450 puzzles.
Related Clues
Firedamps
Vapors
Argon and neon
Atmospheric mix
Butane and methane
Exhausts, say
Freon and xenon
Fules (up)
Krypton and others
Krypton and xenon
Methane and butane
Neon and freon
Neon and oxygen
Neon and xenon
Range fuels
Shoots the breeze
Tear and laughing
Volcanic elements
Xenon and krypton
Xenon and neon
Argon and neon, e.g.
Dentists' aids, at times
Shapeless forms of matter
Some cause laughter
Subject of Avogadro's law
Terrific times, slangily
___ up (fills the tank)
Rightmost column in the periodic table
Definition
GAS as a noun:
1. (gas, gaseous state) = 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
2. a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
3. (gasoline, gasolene, gas, petrol) = a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines
4. (flatulence, flatulency, gas) = a state of excessive gas in the alimentary canal
5. (accelerator, accelerator pedal, gas pedal, gas, throttle, gun) = a pedal that controls the throttle valve; "he stepped on the gas"
6. (natural gas, gas) = a fossil fuel in the gaseous state; used for cooking and heating homes
GAS as a verb:
1. attack with gas; subject to gas fumes; "The despot gassed the rebellious tribes"
2. (boast, tout, swash, shoot a line, brag, gas, blow, bluster, vaunt, gasconade) = show off