- Cryosphere
- Planck length
- Chelating agent
- PEM
- Mutagen
- Peroxisome
- Carbon nanotube
- NTSC
- Complication
- Shingle
- Cretaceous
- Handkerchief tree
- Concussion
- Endoprosthesis
- IUCN
- Neoplasm
- Flexography
- Lamotrigine
- Sialography
- Limestone pavement
- Parthenogenesis
- Second of arc
- Perihelion
- SHON
- Onco-haematologist
- Skylab
- Spinach
- Astringent
- Smoke detector
- International Astronomical Union