| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | anode | electrical engineering | The positive electrode in an electrochemical cell or battery | 1 |
| 2 | diode | electrical engineering | A fundamental component in electronic circuits for preventing current flow in the reverse direction. | 1 |
| 3 | diode | electrical engineering | A diode allows current to flow in one direction and blocks it in the other direction, used in various electronic devices. | 1 |