The Clue
Number 18 (5 letter answer)
The Answer
ARGON
Tags
Notes
The answer ARGON is common and appears about once every 325 puzzles.
Related Clues
A gaseous element
Gaseous element
Inert element
Inert gas
It's inert
Laser gas
Odorless gas
Part of the atmosphere
.93% of the earth's atmosphere
About 1% of the atmosphere
Atomic number 18
Composition of some plasmas
Element in radio tubes
Fluorescent lamp filler
Fluorescent-lamp filler
Gas in a vacuum tube
Inert gaseous element
Light bulb gas
Light-bulb gas
Radio tube gas
Scientific discovery of 1894
Vacuum tube filler
About 1% of the Earth's atmosphere
About 1 percent of the atmosphere
Gaseous element in our atmosphere
Most common inert gas
Most common inert gas in the atmosphere
Definition
ARGON as a noun:
1. (argon, Ar, atomic number 18) = a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere