1. Concave on one side and convex on the other with the concavity being greater than the convexity

See also: concave

• Narcissus papyraceus
• Narcissus pseudonarcissus
• narcist
• narco
• narco-state
• narcoanalysis
• narcolepsy
• narcoleptic
• narcosis
• narcoterrorism
• narcotic
• narcotic antagonist
• narcotics agent
• narcotine
• narcotise
• narcotised
• narcotising
• narcotize
• narcotized
• narcotizing
• narcotraffic
• nard
• Nardil
• nardo
• nardoo