- Rhyolite
- Polarised light microscope
- Penis
- Volcanic arc
- Contraceptive patch
- Container return scheme
- Lethal
- M92
- Firewall
- Local group
- Plague
- Myelomeningocoele
- Omega-9
- Scambaiting
- OMZ
- Flocculation
- Hydrothermal circulation
- Spectrometry
- Bile acid chelator
- BitTorrent Tracker
- Fermion
- Cache poisoning
- Desert pavement or reg
- Terrestrial meridian of a location
- Dorsum
- Subterminal
- Lagging
- Xylene
- Port
- Exocrine