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| selenium | |||
| selenium A highly toxic, nonmetallic element; used in analytical chemistry, metallurgy, and photoelectric cells | |||
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selenium : 24 phrases in 9 subjects |
| Agriculture | 1 |
| Antennas and waveguides | 1 |
| Chemistry | 12 |
| Construction | 1 |
| Cultural studies | 1 |
| Electronics | 3 |
| General | 1 |
| Industry | 1 |
| Medical | 3 |