- Recycling
- Heisenberg inequalities
- Contusion
- Gray code
- Axion
- Asthenia
- Metamict
- SNAPI
- Morning-after pill
- Haploid
- Semen
- Common broom
- Intrauterine device
- Gonad
- Solar power station
- Bioluminescence
- Agroforestry
- Nucleolinus
- Processor cooling
- Chapping
- Adrenaline
- Antagonist
- Natural disaster
- Esker
- Pleiades
- Quantum entanglement
- CDSA
- UNEP
- GPS
- Allopatry