precursor
| precursor | |
| chem. engl. | key precursor |
| med. | forerunner |
| pharma. chem. engl. | chemical precursor; precursor; precursor substance |
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| key precursor | |||
| forerunner | |||
| chemical precursor; precursor; precursor substance | |||
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| precursor chemicals | |||
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precursor : 22 phrases in 7 subjects |
| Chemistry | 1 |
| Environment | 4 |
| General | 9 |
| Health care | 3 |
| Law | 3 |
| Social science | 1 |
| Sociology | 1 |