| English thesaurus | |||
| |||
| POT | |||
|
Protons : 33 phrases in 12 subjects |
| Chemistry | 3 |
| Earth sciences | 8 |
| Electronics | 2 |
| Energy industry | 1 |
| Environment | 2 |
| Health care | 1 |
| Life sciences | 3 |
| Measuring instruments | 2 |
| Natural sciences | 4 |
| Physical sciences | 3 |
| Physics | 1 |
| Technology | 3 |