Words · Familiar
ether
/ˈiθɚ/ · 5 letters · 4 distinct letters
- noun
the fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodies
- noun
any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom
- noun
a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves
- noun
a colorless volatile highly inflammable liquid formerly used as an inhalation anesthetic