| |||
| LED (A semiconductor device that converts electrical energy into light, used, for example, for the activity lights on computer disk drives. Light-emitting diodes work on the principle of electroluminescence and are highly efficient, producing little heat for the amount of light output) | |||
|
LED : 10 phrases in 4 subjects |
| Antennas and waveguides | 3 |
| Communications | 2 |
| Electronics | 4 |
| Transport | 1 |