composés chimiques
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Pyranose | Oeuvre | 29 | 12.0 |
| Pyrantel | Concept | 29 | 9.1 |
| Pyrazinamide | Concept | 35 | 8.1 |
| Pyrazine | Concept | 35 | 4.2 |
| Pyrazolam | Concept | 12 | 3.3 |
| Pyrazole | Concept | 31 | 7.2 |
| Pyrazoline | Concept | 13 | 0.1 |
| Pyridabène | Concept | 3 | 0.4 |
| Pyridazine | Concept | 29 | 1.5 |
| Pyridine | Concept | 57 | 70.2 |
| Pyridine N-oxyde | Concept | 16 | 0.8 |
| Pyridinium | Concept | 12 | 3.1 |
| Pyridostigmine | Concept | 28 | 14.7 |
| Pyridoxal | Concept | 17 | 3.5 |
| Pyridoxamine | Concept | 18 | 1.6 |
| Pyridoxine | Concept | 49 | 18.7 |
| Pyridoxine-doxylamine | Concept | 12 | 7.5 |
| Pyrimidine | Concept | 57 | 39.9 |
| Pyrimidinedione | Composé Chimique | 8 | 0.2 |
| Pyrimidone | Composé Chimique | 8 | 0.0 |
| Pyriméthamine | Concept | 29 | 15.7 |
| Pyriméthanil | Concept | 11 | 4.6 |
| Pyriproxyfen | Concept | 16 | 5.1 |
| Pyrithione de Zinc | Concept | 19 | 10.7 |
| Pyrocarbonate D'éthyle | Concept | 16 | 3.4 |
| Pyrocatéchol | Concept | 38 | 11.1 |
| Pyrogallol | Concept | 33 | 5.0 |
| Pyrolyse D'ester | Concept | 9 | 1.1 |
| Pyrone | Concept | 12 | 1.2 |
| Pyrophosphate | Composé Chimique | 32 | 26.5 |
| Pyrophosphate de Sodium | Concept | 17 | 15.7 |
| Pyrosilicate de Sodium | Concept | 5 | 0.0 |
| Pyrosulfate | Concept | 11 | 0.4 |
| Pyrosulfate de Potassium | Concept | 24 | 1.1 |
| Pyrovalérone | Concept | 17 | 3.9 |
| Pyroxsulame | Concept | 4 | 0.8 |
| Pyrrole | Concept | 48 | 32.2 |
| Pyrrolidine | Concept | 32 | 9.6 |
| Pyrrolizidine | Concept | 23 | 1.0 |
| Pyrroloquinoléine Quinone | Concept | 15 | 7.3 |
| Pyrrolysine | Concept | 37 | 8.4 |
| Pyrène | Concept | 27 | 10.7 |
| Pyrénoïde | Concept | 19 | 7.2 |
| Pyréthrines | Objet | 22 | 25.9 |
| Pyréthrinoïde | Objet | 19 | 34.0 |
| Pzt | Concept | 19 | 13.2 |
| Pâte Adhésive | Substance | 16 | 2.4 |
| Pâte Brisée | Substance | 36 | 114.6 |
| Pâte Feuilletée | Substance | 50 | 95.9 |
| Pâte Fimo | Substance | 15 | 74.1 |