1. Of or relating to the study of ferns

See also: pteridology

• Nuclear Regulatory Commission
• nuclear resonance
• nuclear RNA
• nuclear rocket
• nuclear submarine
• nuclear terrorism
• nuclear transplantation
• nuclear warhead
• nuclear weapon
• nuclear winter
• nuclear-powered ship
• nuclear-powered submarine
• nuclease
• nucleate
• nucleated
• nucleation
• nucleic acid
• nucleolar
• nucleolar organiser
• nucleolar organizer
• nucleole
• nucleolus
• nucleolus organiser
• nucleolus organizer
• nucleon