English word optoisolator comes from English isolator, English opto- (Eye, vision, light.)
| Dictionary entry | Language | Definition |
|---|---|---|
| isolator | English (eng) | A device that isolates something from the surrounding environment to keep it sterile.. An electrical device that detects short circuits and isolates them. |
| opto- | English (eng) | Eye, vision, light. |
| optoisolator | English (eng) | A device that transmits a signal optically between two isolated electronic circuits. |