| Subject | English | Polish |
| comp., MS | peak expiratory flow | szczytowy przepływ wydechowy (The maximum volume of air exhaled during a forced expiration starting with the lungs fully inflated) |
| med. | peak flow | szczytowy przepływ |
| comp., MS | peak flow meter | miernik przepływu szczytowego (A portable instrument that measures the flow of air during a forced expiration) |