- Aulacogen
- Heliocentric
- Ghost lineage
- Lesser kestrel
- Orthorhombic system
- Planetary nebula
- Lander
- Inherited
- Challenger
- Blog
- Local group
- Pleiades
- Infusion
- OCD
- Pyrophyllite
- Adware
- Gravitational wave
- Conjunction
- Ares I
- Fibrosis
- Conformation
- Batesian mimicry
- Factorial
- Bald cypress
- CCITT
- SECAM
- Microdiorite
- Pulse
- Fast neutron reactor
- Exothermicity