| Subject | English | Croatian |
| econ. | apparatus based on the use of rays | uređaj za zračenje |
| comp., MS | Blu-ray Disc | Blu-ray disk (A high definition optical disc format which uses a smaller focus blue-violet 405 nm laser allowing higher precision and storage density. A competitor to HD DVD) |
| nat.sc. | cosmic ray | kozmička radijacija |
| fish.farm. | electric ray | drhtulja (Narcine brasiliensis, Torpedinidae, Torpedo californica, Torpedo marmorata, Torpedo nobiliana, Torpedo torpedo, torpedo ocellata, torpedo narke) |
| fish.farm. | ray's bream | grboglavka (Brama brama, brama rayi) |
| health. | X-ray contrast media | kontrastna sredstva za radiografska ispitivanja |