| Answer | Crossword Clue |
|---|---|
| ANTENNAS | Receivers of electromagnetic waves |
| LASERS | Amplifiers of electromagnetic waves |
| MASER | Amplifier of electromagnetic waves |
| RADIATE | Transmit electromagnetic waves. |
| RADIATIONS | Electromagnetic waves, e.g. |
| MASER | Device amplifying electromagnetic waves |
| MASERS | Devices for amplifying electromagnetic waves |
