| |||
| operating room O.R. (OP); surgery | |||
| operating room | |||
| operating theatre; theatre | |||
| operating suite | |||
| operating room (suite, theatre, theater) | |||
| theater | |||
| operating theater | |||
|
Operationssaal : 5 phrases in 5 subjects |
| American usage, not spelling | 1 |
| British usage, not spelling | 1 |
| Government, administration and public services | 1 |
| Medical | 1 |
| Medical appliances | 1 |