- Dehiscence
- RFT
- Duplex
- Primitive filter
- Residual error rate
- Dimorphous
- Hardy kiwi
- Limescale
- Necrosis
- Fibrous root system
- Mineral carbonation
- Porphyry
- Chordates
- Perigranitic
- Anode
- Nuclear fission
- Micro-computer
- Pelvic cavity
- Ordovician
- Teratoma
- Organic agriculture
- Semelparity
- Common channel signalling
- Moulting
- Rhizoid
- Tectite
- Fluorine
- Mars Express
- Schrödinger's cat
- International Space Station