- ETHER
- Medieval atmosphere
- Old-time anaesthetic
- Old-time anesthetic
- Solvent
- Anesthetic
- Anesthetic of old
- Common solvent
- Erstwhile anesthetic
- It put people to sleep
- It's a gas
- It's a knockout
- Old anesthetic
- Boundless blue
- Early anesthetic
- Region just past the ozone
- Anesthetic in old medicine
- It'll knock you out
- Air beyond the clouds
- Chloroform's predecessor
- Old sleeping aid?
- One-time anesthetic
- One-time labratory solvent
- Outer region of space
- Clear blue sky
- Knockout stuff
- Upper region of space
- Blue sky
- Pleasant-smelling gas
- Knockout from yesteryear
- Bygone anesthetic
- Space, poetically
- Upper atmosphere
- Early number?
- Compound number?
- Wild blue yonder
- Cyberspace metaphor
- Former anesthetic
- Outmoded anesthetic
- Aristotle's "fifth element"
- I said it! preceder
- It replaced chloroform by the 1850s, medically speaking
- Word in the chorus of "Take Me Out to the Ball Game"
- Anesthetic of yore
- Colorless, flammable liquid
- Heavens
- Obsolete anesthetic
- Anesthetic gas of old
- Novocain predecessor
- Airwaves, so to speak
- Former number?
- Upper regions of space
- Procaine predecessor
- Nitrous oxide predecessor
- Old number?
- Airwaves
- Anesthesia of old
- Chloroform kin
- Once-popular anesthetic
- Aromatic solvent
- Chloroform cousin
- Number no longer used
- Passé gas
- Anesthetic gas
- Dental anesthetic of old
- Old under-taker
- Passé anesthetic
- Common anesthetic
- Burn severely?
- Knockout gas
- Out-of-style anesthetic
- One-time surgery aid
- Upper regions
- It can knock you out
- Old hospital supply
- It can put you out
- Old knockout cause
- Early surgery aid
- Old knockout agent
- Out-of-use anesthetic
- It's a real knockout
- Clear sky
- Old-style anesthetic
- Air, to a poet
- Knockout drops
- The heavens
- Outmoded knockout
- Heavens, poetically
- Word from the Latin for "pure air"
- Upper sky
- Compound in 85 Across history
- Literary heavens
- Aromatic liquid formerly used as an anesthetic
- Number that's no longer used
- Old-fashioned anesthetic
- Inhalant anesthetic of the past
- Book of Mormon book
- Number that might be used when counting backward from 100?
- Volatile solvent
- First publicly used in 1846.
- Hypothetical medium.
- Empyrean.
- Inflammable liquid.
- The clear sky.
- The upper regions of space.
- Where space ships fly.
- Beyond the stratosphere.
- The empyrean.
- Upper space.
- Upper air.
- Volatile, highly inflammable liquid.
- Aromatic liquid.
- Outer space.
- The wild blue yonder.
- Milieu for astronauts.
- Atmosphere.
- Heaven.
- Heady stuff
- Rare air
- Sky
- Light gas
- The wide blue yonder
- BBC realm
- Solvent for resins and fats
- Wide blue yonder
- Astronaut's milieu
- Space out yonder
- The sky
- An anesthetic
- Laughing-gas kin
- Upper places in space
- Colorless liquid
- Upper reaches of space
- Dr. Morton's anesthetic
- Ethyl oxide
- Chloroform's cousin
- This could put you under
- Dentist's gas
- Dentist's supply, once
- Flammable anesthetic
- Preparation for drilling?
- Space, to poets
- Pre-Novocain stuff
- Pre-op inhalant, once
- Preoperative delivery, once
- What a knockout!
- Fifth element, to Aristotle
- Upper atmosphere, with "the"
- Cousin of chloroform
- It puts people out
- Part of the gasoline additive M.T.B.E.
- Preoperative delivery of old
- Composition of outer space, in old belief
- Old hospital administration
- It can knock people out
- Potent anesthetic
- Dimethyl ___ (aerosol propellant)
- One on it may be out of it
- Onetime dental anesthetic
- Air up there
- Fifth element, per Aristotle
- Knockout number?
- Dioxane, e.g.
- Dr. Larch's drug in "The Cider House Rules"
- C4H10O
- Lead-in to net
- Surgeon's supply in the old days
- Thin air
- Upper reaches
- It will put you to sleep
- Antiquated anesthetic
- Old dentist's supply
- What radio signals travel through, with "the"
- Old knockout?
- Anesthetic since the 1840s
- Onetime dentist's supply
- A great composer?
- Rarefied air
- Welsh alt-rock band
- Who "In the ___"
- Disappear into the ___
- Dangerously flammable substance once used as an anesthetic
- Nineteenth-century knockout?
- It put people to sleep, once
- Old operating room substance
- Operating room substance, once
- Flammable solvent
- Heavenly space
- Old sleep aid?
- Outdated anesthetic
- Standard anesthetic, once
- Inhalation anesthetic of old
- It could knock you out
- There was a time it could knock you out
- Old sleep-inducer
- Fifth classical element
- Inhaled anesthetic of old
- Anesthetic liquid
- Preoperative anesthetic of old
- Certain anesthetic
- Upper regions of space, figuratively
- Upper regions of space, poetically
- Air beyond the clouds, poetically
- Old-time knockout gas
- Operating room substance of old
- Old knockout gas
- Chloroform relative
- Pre-Novocain application
- Upper air, poetically
- Air, poetically
- Early anesthesia
- Number used no more?
- Heavens, in poetry
- The far-blue yonder
- Earth's envelope
- Outer regions of space
- Cosmos
- Firmament
- Solvent, reagent, or anesthetic
- Knock-out gas, once
- Discovery of a Spanish chemist in 1275
- Flammable liquid
- Antiknock additive
- Chloroform substitute
- Inhalation anesthetic, once
- Air or heavens, to a poet
- Kin of chloroform
- Anesthetic, formerly
- Surgeon's supply of yore
- Vanish into the ___
- Vanished into the ___
- Chemistry lab solvent
- Organic compound used in insecticides
- Theoretical substance once believed to permeate all matter and space
- Airwaves, informally
- Anesthetic largely replaced by Halothane
- Clear sky, poetically
- Clear sky, to poets
- Region beyond the ozone
- Clear night sky, in poetry
- Highly flammable solvent
- Volatile liquid used in solvents
- Clear sky, in poems
- Flammable early anesthetic
