- Solar eclipse of 11 August 1999
- Centrex
- Nutricline
- Compressed air engine
- Invisible Web
- Esker
- Keesom force
- Orotic acid
- Antispastic agent
- Merlot
- Peroxisome
- Gossan
- Diastole
- Induced pluripotent stem cell
- Variability in heart rate
- Expectorant
- Telemetry
- XviD
- Oakley
- Bradypnoea
- Neovascularisation
- Metapopulation
- Levorotatory
- Eddington limit
- Orbital
- Stockholm Conference
- Indehiscent
- Botulinum toxin
- GAK
- Conjugation