ether

1 ENTRIES FOUND:
ether /ˈiːθɚ/ noun
ether
/ˈiːθɚ/
noun
Britannica Dictionary definition of ETHER
[noncount]
1 
: a liquid that burns easily, that is used to turn solid substances into liquid, and that was used in medicine in the past to prevent patients from feeling pain during operations
2 
the ether : the air : the sky
— used especially when describing electronic signals that travel through the air