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| pyrollidone (органическое соединение класса лактамов Игорь_2006); pyrrolidinone (Racooness) | |||
| pyrrolidone | |||
| пирролидон: 12 phrases in 7 subjects |
| Chemical compounds | 1 |
| Chemistry | 1 |
| Cosmetics and cosmetology | 1 |
| Makarov | 3 |
| Polymers | 2 |
| Technology | 1 |
| Weapons of mass destruction | 3 |