- Hour circle of a direction
- Cystectomy
- International Astronomical Union
- Bile acid chelator
- COP15
- Glycerol
- Dense Plume
- Flora Fauna Habitat Directive
- Melanopsin
- Chondrite
- Conductivity
- Diffuse pollution
- LOX
- Hard base
- Wave mechanics
- Concorde
- Worm screw
- Motor neurone
- Fumaroles
- Damselfly
- Plagioclasite
- IFP
- Dark matter
- Heat lightning
- Group velocity
- Monkey puzzle tree
- Tungsten
- IPv4
- Polysynthetic
- Choroid