- Pulmonary alveolus
- Chemosynthesis
- Residue
- PAP
- Monocyte
- Heterotrophism
- Shooting star
- Adduction
- Light pollution
- Ribonucleotide
- Flood
- Scrapie
- Perigee
- Sigmoidoscopy
- Mortar
- Fuel cell
- Firewall
- Dyspraxia
- Instant messaging
- Circumcision
- Dawn
- Double-flow controlled mechanical ventilation (CMV)
- Colony
- Segregation deposit
- Isomerase
- Plinian spine
- Windrow
- Tropical year
- Pink siris
- Pull-apart sedimentary basin