Related Clues:

• Some anesthetics
• They'll knock you out
• Anesthetics of old
• Industrial solvents
• Volatile solvents
• Some solvents
• Sleep inducers, once
• Ethyl oxides
• Numbing agents
• Bygone numbers
• Early anesthetics
• Old anesthetics
• Erstwhile anesthetics
• Organic compounds used as solvents
• Bygone anesthetics