| Subject | English | Portuguese |
| comp., MS, Braz. | primary buffer | buffer primário (A buffer in which all data is mixed for the final time and then passed to the rendering device) |
| comp., MS | primary buffer | memória intermédia primária (A buffer in which all data is mixed for the final time and then passed to the rendering device) |
| chem. | primary buffer stock solution | solução tampão mãe |