solid-state device
nounUK /ˌsɒlɪd steɪt dɪˈvaɪs/
US /ˌsɑːlɪd steɪt dɪˈvaɪs/
A solid-state device is a gadget that works using special parts with no moving pieces inside.
The flashlight uses a solid-state device to make light without any moving parts.
OTHER MEANINGS
2. A device that stores data in computer chips instead of spinning disks.
My new laptop has a solid-state device that makes it start up very fast.
3. Any electronic device built from solid materials like crystals rather than vacuum tubes.
Old radios used glass tubes, but modern ones are solid-state devices.
4. A component that controls electricity using semiconductor materials.
The tiny solid-state device inside the toy controls when the light blinks.