- ACTH
- Alluvial deposit
- Thermal bridge
- Cave
- Celestial body
- Marginal basin
- Seveso disaster
- Centromere
- Inhalation
- Down quark
- Inflorescence
- Fibrinogen
- PET
- Monterey cypress
- Mars Reconnaissance Orbiter
- Absolute temperature
- Riemann surface
- Cladode
- ppm
- Deimos
- Altostratus cloud
- SRS
- Electronic configuration
- Air brake
- Cremaster
- Island arc
- Collenchyma
- Exo-Earth
- Basaltic
- African longfin eel