- Compound eye
- Contraception
- Natural ventilation
- Diachronous
- Q fever
- Ornithologist
- Tuff
- Telescope
- Longhorn
- Hardness
- Frame-dragging
- Acini
- Resection
- Akari
- Sessile oak
- AB Label
- Analgesic
- Total suspended solids
- Dolby
- Barycentric
- Soda straws
- Nernst theorem
- Metallicity
- Recycling
- Hooklet
- Ductility
- Anti-hormone
- Amino acid
- Conductivity
- Continental shelf