- Aral sea
- Axial
- NGN
- Crystallography
- Autopsy
- X-15
- Homolysis
- GUT
- Myelomeningocoele
- Semen
- Conduction block
- Menstrual cycle
- Ringwoodite
- In vivo
- Dermatitis
- Non-spectral colour
- Iron
- Neurochip
- Temperate forest
- Toxic waste
- Electrolysis
- Monospecific
- Circumpolar Arctic
- Callus
- Gost
- Greenhouse effect
- Continental crust
- Chromosomal theory of inheritance
- Distilled water
- Ecodriving