- organogenesis (plant)
- organogeny
- organogermanium chemistry
- organolanthanide chemistry
- organolithium reagent
- organology
- organomercury fungicide
- organometallic chemistry
- organometallic complexe
- organometallic compound
- organometallic compound analysis for geochemical sample
- organometallic compound of uranium，uranium organometallic
- organometallic compounds
- organometallic polymer
- Organon
- organonitrogen compound
- organon parallacticon
- organophosphate insecticide poisoning in animals
- organophosphor
- organophosphorus compound
- organophosphorus fungicide
- organophosphorus insecticides
- organophosphorus pesticides
- organophosphorus polymer
- organo rare earth metal chemistry