Related Clues:
- Part of the gasoline additive M.T.B.E.
- The heavens
- With 45-Down, C2H5OH
- It's a gas?
- Gas additive
- Old alternative to Regular
- Inhalation anesthetic of old
- It's a gas!
- Preoperative delivery of old
- It'll knock you out
- Once-popular anesthetic
- Gas for Merman?
- Old number?
- Old-time anesthetic
- It could knock you out