| Pseudophyllidea | Pseudophyllidea |
| Pseudoplatystoma | Surubí |
| Pseudopotential | Pseudo-potentiel |
| Pseudoprime | Nombre pseudopremier |
| Pseudorandom number generator | Générateur de nombres pseudo-aléatoires |
| Pseudorandomness | Pseudo-aléatoire |
| Pseudorange | Pseudo-distance |
| Pseudorchis albida | Pseudorchis albida |
| Pseudoscalar | Pseudoscalaire |
| Pseudoscience | Pseudo-science |
| Pseudotropheus | Pseudotropheus |
| Pseudovector | Pseudovecteur |
| pshaw | peuh |
| Psi | Psi |
| Psi Corps | Corps Psi |
| Psikhushka | Psikhushka |
| Psilocybe | Psilocybe |
| Psilocybe cubensis | Psilocybe cubensis |
| Psilocybe cyanescens | Psilocybe cyanescens |
| Psilocybe mexicana | Psilocybe mexicana |
| Psilocybe semilanceata | Psilocybe semilanceata |
| Psilocybin mushrooms | Champignon hallucinogène |
| Psilophyta | Psilophyta |
| Psilotaceae | Psilophyta |
| Psilotales | Psilophyta |
| Psilotopsida | Psilophyta |
| Psilotum | Psilotum |
| Psiloxylon | Psiloxylaceae |
| Psion | Psion |
| Psittacinae | Psittacinae |
| psittacosis | psittacose |
| Psittacula | Psittacula |
| Pskov | Pskov |
| Pskov Oblast | Oblast de Pskov |
| Pskov Republic | République de Pskov |
| PSM | PSM |
| PSoC | Sopc |
| Psocoptera | Psocoptera |
| Psoralen | Furocoumarine |
| psoriasis | psoriasis |
| Psunj | Psunj |
| Psusennes I | Psousennès |
| Psusennes II | Psousennès II |
| Psusennes III | Psousennès III |
| PSV Eindhoven | PSV Eindhoven |
| Psych folk | Psyché folk |
| psyche | psyché |
| psychedelic | psychédélique |
| Psychedelic art | Art psychédélique |
| Psychedelic mushroom | Champignon hallucinogène |
| Psychedelic music | Rock psychédélique |
| Psychedelic trance | Trance psychédélique |
| psychiatric | psychiatrique |
| Psychiatric ward | Psychiatrie |
| psychiatrist | psychiatre |
| psychiatry | psychiatrie |
| psychic | médium |
