| Subject | Spanish | English |
| met. | banda para opérculos | lidstock |
| met. | banda para opérculos | lidding strip |
| med. | epilepsia opercular | opercular epilepsy |
| med. | opérculo cervical | cervical operculum |
| med. | opérculo frontal | frontal operculum |
| med. | opérculo frontoparietal | frontoparietal operculum (operculum frontoparietale) |
| med. | opérculo rolándico | frontoparietal operculum (operculum frontoparietale) |
| med. | opérculo temporal | temporal operculum (operculum temporale) |