| Subject | English | Finnish |
| commun., comp. | physical layer | peruskerros |
| commun., comp. | physical layer | fyysinen kerros |
| comp., MS | physical layer | fyysinen kerros (Layer one of the OSI model. A software layer that transmits bits from one computer to another and regulates the transmission of a stream of bits over a physical medium. This layer defines how the cable is attached to the network and which transmission technique is used to send data over the cable) |
| commun., comp. | physical layer | kerros |
| commun. | physical layer convergence protocol | fyysisen kerroksen keskitysprotokolla |
| commun. | physical layer convergence protocol | PLCP-protokolla |
| transp., avia. | physical layer protocol data unit | fyysisen kerroksen yhteyskäytännön datayksikkö |
| el. | physical thickness of scattering layer | sirontakerroksen fyysinen paksuus |