1. Lines of track, collectively
   "an extensive trackage"

Derived forms: trackages

• genus Nautilus
• genus Necturus
• genus Negaprion
• genus Nelumbo
• genus Nemophila
• genus Neoceratodus
• genus Neofiber
• genus Neohygrophorus
• genus Neolentinus
• genus Neomys
• genus Neophron
• genus Neotoma
• genus Nepa
• genus Nepenthes
• genus Nepeta
• genus Nephelium
• genus Nephrolepis
• genus Nephrops
• genus Nephthytis
• genus Nerita
• genus Neritina
• genus Nerium
• genus Nerodia
• genus Nesokia
• genus Nestor