| Plains Zebra | Almindelig zebra |
| plan | plan |
| Plan section | Plan |
| Planck constant | Plancks konstant |
| plane | flyvemaskine |
| plane source | plan kilde |
| Plane-tree | Platan-familien |
| planet | planet |
| Planetary nebula | Stjernetåge |
| Planetary phase | Fase |
| Planetshine | Jordskin |
| Planig and shaping tool | Spunningshøvl |
| Planing tool | Spunningshøvl |
| plank | bræt |
| Plankalkül | Plankalkül |
| plankton | plankton |
| planning | planlægning |
| planning law | planlægningslovgivning |
| planning measure | udviklingsforanstaltning |
| planning permission | byggetilladelse |
| plant | plante |
| Plant anatomy | Blad |
| plant biology | plantebiologi |
| plant breeding | planteavl |
| plant community | plantesamfund |
| plant component | plantedele |
| plant disease | plantesygdom |
| plant eater | planteæder |
| plant ecology | planteøkologi |
| plant equipment | et anlægs udstyr |
| plant heritage | plantearv |
| plant nursery | planteskole |
| Plant nutrition | Næringsstof |
| plant physiology | plantefysiologi |
| plant population | plantebestand |
| plant production | planteproduktion |
| plant protection | plantebeskyttelse |
| plant protection product | plantebeskyttelsesmiddel |
| plant reproduction | forplantning |
| plant resource | planteressourcer |
| plant selection | planteudvælgelse |
| Plant sexuality | Tvebo |
| plant species | planteart |
| plant species reintroduction | genudsætning af en planteart |
| plant textile fibre | vegetabilsk tekstilfiber |
| plant trade | plantehandel |
| Plantaginaceae | Vejbred-familien |
| Plantago media | Dunet Vejbred |
| planting | plantning |
| Plasebo | Placeboeffekt |
| Plasma | Plasma |
| Plasma effect | Plasma |
| plasma technology | plasmateknologi |
| Plasmas | Plasma |
| Plasmid | Plasmid |
| Plasmodium falciparum | Plasmodium falciparum |
| Plaster | Gips |
| Plaster stone | Gips |
