noun
argon
AR-gahn/ˈɑːrɡɑːn/
A colorless gaseous chemical element that rarely reacts with other substances.
The sealed laboratory bulb holds colorless argon, identified by the symbol Ar.
Etymology
The pieces convey “not working,” giving the Greek description “idle.” The discoverers applied that image to the gas because of its chemical inertness—its striking indifference to reacting.
In context
oxygen gas followed by the rest is the remaining one percent is the other gases such as the inert gas argon 0.9 percent is made up of argon
More examples
- The technician checks the argon cylinder.
- Argon is listed among the noble gases.
- The welding process uses a flow of argon.
Similar words
- noble gas
- The broader chemical group that includes argon.