1. An alloy of gold used in dentistry

Type of: alloy, metal

• genus Nopalea
• genus Nostoc
• genus Notechis
• genus Notemigonus
• genus Nothofagus
• genus Nothosaurus
• genus Notomys
• genus Notonecta
• genus Notophthalmus
• genus Notornis
• genus Notoryctus
• genus Notropis
• genus Nucifraga
• genus Numenius
• genus Numida
• genus Nuphar
• genus Nuytsia
• genus Nyctaginia
• genus Nyctanassa
• genus Nyctereutes
• genus Nycticebus
• genus Nycticorax
• genus Nyctimene
• genus Nymphaea
• genus Nymphalis