- - Operation aids
- - Old numbers?
- - Colorless, flammable liquids
- - Anesthetic choices
- - Old anesthetics
- - Early anesthetics
- - Anesthetics of old
- - Anesthetics of yore
- - Anesthetic choices, once
- - Liquids that burn easily
- - Numbers of old?
- - Old-time anesthetics
- - Bygone anesthetics
- - They can knock you out
- - Heavenly airs
- - Sleep inducers, once
- - Organic compounds used as solvents
- - Industrial solvents
- - Erstwhile anesthetics
- - Ethyl oxides
- - Bygone numbers
- - Ozone layers
- - Former anesthetics
- - Some liquid solvents
- - Some anesthetics
- - Common solvents
- - Class of compounds
- - Anesthetics
- - Highly flammable liquids
- - Volatile liquids
- - Inflammable liquids
- - Certain solvents
- - Surgeon's needs.
- - Solvents used in making rayon.
- - Volatile liquids, in chemistry.
- - Alcohol compounds.
- - Powerful solvents.
- - They'll knock you out
- - Organic compounds
- - Some organic compounds
- - Chemicals.
- - Laboratory compounds.
- - Some solvents
- - Volatile solvents
- - Flammable liquids
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- [ Other definitions ]