| Subject | English | French |
| mater.sc. | alloy of polystyrene and polyphenylene oxide PPO | alliage polystyrène et de polyoxyde de phénylène |
| chem. | atactic polystyrene | polystyrène atactique |
| industr., chem., polit. | European Extruded Polystyrene Insulation Board Associations | Associations européennes de fabricants de plaques isolantes de polystyrène extrudé |
| fin., industr., polit. | European Quality Assurance Association of Expanded Polystyrene Foam Manufacturers | Association européenne d'assurance de qualité des fabricants de mousses de polystyrène expansé |
| mater.sc., chem. | expanded polystyrene | polystyrène moussé |
| industr., chem. | expanded polystyrene | polystyrène expansé |
| mater.sc., industr., construct. | expanded polystyrene | mousse de polystyrène |
| pack. | expanded polystyrene | mousse de moussé |
| pack. | expanded polystyrene foam | mousse de polystyrène expansé |
| health. | expanded polystyrene projection | bosse en mousse |
| industr., chem. | expansive polystyrene | polystyrène expansé |
| chem. | extruded polystyrene | polystyrène extrudé |
| chem. | extruded polystyrene | polystyrène boudiné |
| chem. | Extruded Polystyrene | polystyrène extrudé |
| mater.sc., industr., construct. | foam polystyrene | mousse de polystyrène |
| mater.sc., chem. | foam polystyrene | polystyrène moussé |
| pack. | foam polystyrene | mousse de moussé |
| mater.sc., chem. | foamed polystyrene | polystyrène moussé |
| pack. | foamed polystyrene | mousse de moussé |
| chem. | high impact polystyrene | polystyrène Antichoc |
| tech. | high impact polystyrene | polystyrène choc |
| gen. | high impact polystyrene | polystyrène résistant aux impacts |
| construct. | high-impact polystyrene | polystyrène antichoc |
| gen. | plates with a diameter of between 17 and 21 cm and "glasses" of polystyrene | assiettes d'un diamètre de 17 à 21 inclus et gobelets en polystyrène |
| industr., construct., chem. | polystyrene-butadiene | polystyrène-butadiène |
| industr., construct., chem. | polystyrene-butadiene | copolymère styrène-butadiène |
| earth.sc., el. | polystyrene capacitor | condensateur polystyrène |
| radiat. | polystyrene dosemeter | dosimètre de polystyrène (dose meter, dosimeter) |
| industr., construct. | polystyrene fibre | fibre de polystyrène |
| gen. | polystyrene foam | polystyrène expansé |
| gen. | polystyrene foam | mousse de polystyrène |
| biotechn. | polystyrene immunoplates | plaques immunologiques en polystyrène |
| fin., polit. | polystyrene in all its forms | polystyrène sous toutes ses formes |
| tech., chem. | polystyrene plastic | plastique polystyrène |
| chem. | polystyrene sulfonate | polystyrène sulfonate |
| met. | polystyrene twinning | macles polysynthétiques |
| nat.res. | polystyrene waste | déchet de polystyrène |
| nat.sc. | reactive polystyrene | polystyrène réactif |
| chem. | sulfonated polystyrene resin | résine de polystyrène sulfonée |
| tech., mater.sc. | sulphonated polystyrene | polystyrène sulfoné |