Applied to a gastropod (Gastropoda) shell that is very high-spired, with a flat or gently rounded base.
Turreted
- N-firm concentration ratio
- NFS
- NFS attack
- NFκB
- N galaxy
- Ngaterian
- NGC
- NGF
- NGL
- Ngo Dinh Diem (1901–63)
- NGS
- Nguni
- Nguyen Van Thieu (1923–2001)
- NH
- NHOMO
- niacin
- Niagaran
- nibble
- Nicaea, Councils of
- Nicaean empire (1204–61)
- NICAM
- Nicaragua
- Commonwealth, British
- Commonwealth of Independent States
- Commonwealth of Nations