- Tundra
- X-rays
- Odontocetes
- Catechol-O-methyltransferase inhibitor
- Packet switching
- Audiotex
- Registrar
- Ice shelf
- Flagellum
- In vitro fertilisation
- Yellow dwarf
- Corium
- M32
- Blogosphere
- Transporter protein
- Raman spectroscopy
- Spitzer
- MAC
- M35
- HDCP
- Pneumonia
- Terrestrial planet
- Oviparous
- Crust
- Strong opioid analgesic
- Anti-androgen
- Sidereal period
- Ariane 5
- Fault
- Endemism