- Oil producing plant
- Optical isomers
- Breast-shield
- Solar flare
- Herpes
- The Nile
- Porosity
- Polymerase
- Pyrites
- Roaming
- Cotyledon
- Greisen
- Expectorant
- Pituitary gland
- Chromosomal theory of inheritance
- Rolling mill
- Small planet
- Immunomodulator
- Cerebrospinal
- Richter Scale
- Cotylopus acutipinnis
- Montreal Protocol
- Colic
- Dry ice
- Rogue
- Superconductivity
- Testis
- Southern right whale
- Estrogen
- Magnaporthe grisea