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Answer: ARGON
ARGON is a crossword puzzle answer that we have spotted 105 times.
Radio tube gas
Scientific discovery of 1894
Vacuum tube filler
About 1% of the atmosphere
Number 18
Part of the atmosphere
Light bulb gas
Fluorescent lamp filler
Inert gas
About 1% of the Earth's atmosphere
It's inert
Laser gas
Element whose name comes from Greek for "inactive"
Element whose name roughly means "lazy"
Incandescent lamp gas
Gas in incandescent lamps
It fills fluorescent and incandescent lamps
Roughly 1% of the atmosphere
Light gas
Earth's most abundant noble gas
Gas used in arc welding
Inert gas used in welding
Fluorescent bulb gas
Incandescent bulb gas
Almost 1% of the Earth's atmosphere
A noble gas
Fluorescent bulb filler
Gas in bulbs
Rare gas
Element in air
Vacuum tube gas
Fluorescent tube gas
Gas in incandescent lamps, perhaps
Gas used in incandescent lamps
Composition of some plasmas
Light bulb filler
Most common inert gas in the atmosphere
About 1%25 of the atmosphere
Light-bulb gas
Flourescent tube gas
First noble gas discovered
Helium group gas
Most common noble gas
Common noble gas
Noble gas
Gas in fluorescent bulbs
Light gas
Electric-bulb gas
Element #18
#18 on the periodic table
#18 on the periodic table
.93% of the earth's atmosphere
Atomic #18
Common inert gas
About 1 percent of the Earth's atmosphere
Common inert gas in the atmosphere
Bulb gas
It lights up when it's excited
Inert element
Air element
Vacuum-tube gas
One of the noble gases
Fluorescent-lamp filler
About 1% of what you just inhaled
You just inhaled some
Noble gas, and a homophonic hint to how this puzzle's four longest answers are formed
Most common inert gas
An inert gas
Roughly 1% of the earth's atmosphere
Inert elemental gas
About 1% of air
Most abundant inert gas
Chlorine's periodic table follower
This, on the periodic table
Trace atmospheric element
Colorless gas
Wee bit of air
Third-most abundant gas in the atmosphere
Inert gas in the atmosphere
Neighbor of krypton on the periodic table
Noble gas used in lasers
Gas in some lasers
Element in fluorescent lights
Noble gas in air
Inert gas in the air
Noble gas in the atmosphere
Element below neon on the periodic table
First noble gas to be discovered
Noble gas that sounds like a French forest
Element suggested phonetically by NOPQ STUV ...
Noble gas in some lasers
Noble gas that's an anagram of "organ"
First noble gas, alphabetically
Alphabetically first noble gas
Gas used in insulating windows
Neighbor of chlorine on the periodic table
Most abundant noble gas in the earth's atmosphere
Noble gas used in welding
Element used in fluorescent tubes
Noble gas that's roughly 1% of the atmosphere
Gaseous element
Most abundant noble gas in the atmosphere
Element whose name anagrams to GROAN
Gas in fluorescent lamps
Gas in purple "neon" signs