n.
1.a colorless volatile highly inflammable liquid formerly used as an inhalation anesthetic
2.the fifth and highest element after air and earth and fire and water
3.any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom
4.a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves
Idiom of the Day
play it cool
to act calm and not concerned
I tried to play it cool when the policeman stopped me when I was driving my car.