- Molecular clock
- Gravitational constant
- CMP
- Composite
- Ecophysiology
- Xerostomia
- Conception
- Videotex
- Anopheles
- Pigment
- Carditis
- Water
- Layering
- Ulysses
- Odontocetes
- Transparent
- Ross, Frank
- Tracheostomy
- Dysnomia
- Sequella
- Thermosiphon
- Thermal insulator
- Reversible reaction
- Agglutinogen
- White noise
- Echolocation
- Z0
- ELT
- Monoethanolamine
- U