Words starting with N that are validated

• North American Free Trade Agreement — Noun – English ～ an agreement for free trade between the United States and Canada and Mexico; became effective in 1994 for ten years
• national trading policy — Noun – English ～ a government's policy controlling foreign trade
• non-nucleoside reverse transcriptase inhibitor — Noun – English ～ an antiviral drug used against HIV; binds directly to reverse transcriptase and prevents RNA conversion to DNA; often used in combination with other drugs
• nucleoside reverse transcriptase inhibitor — Noun – English ～ an antiviral drug used against HIV; is incorporated into the DNA of the virus and stops the building process; results in incomplete DNA that cannot create a new virus; often used in combination with other drugs
• nuclear transplantation — Noun – English ～ moving a cell nucleus and its genetic material from one cell to another
• North Atlantic Treaty Organization — Noun – English ～ an international organization created in 1949 by the North Atlantic Treaty for purposes of collective security
• North Atlantic Treaty — Noun – English ～ the treaty signed in 1949 by 12 countries that established NATO
• nettle tree — Noun – English ～ any of various trees of the genus Celtis having inconspicuous flowers and small berrylike fruits
• neem tree — Noun – English ～ large semi-evergreen tree of the East Indies; trunk exudes a tenacious gum; bitter bark used as a tonic; seeds yield an aromatic oil; sometimes placed in genus Melia
• necklace tree — Noun – English ～ a tree of the genus Ormosia having seeds used as beads
• nectarine tree — Noun – English ～ variety or mutation of the peach bearing fruit with smooth skin and (usually) yellow flesh
• nitta tree — Noun – English ～ any of several Old World tropical trees of the genus Parkia having heads of red or yellow flowers followed by pods usually containing edible seeds and pulp
• nim tree — Noun – English ～ large semi-evergreen tree of the East Indies; trunk exudes a tenacious gum; bitter bark used as a tonic; seeds yield an aromatic oil; sometimes placed in genus Melia
• nutmeg tree — Noun – English ～ East Indian tree widely cultivated in the tropics for its aromatic seed; source of two spices: nutmeg and mace
• nut tree — Noun – English ～ tree bearing edible nuts
• nut-leaved screw tree — Noun – English ～ East Indian shrub often cultivated for its hairy leaves and orange-red flowers
• nitrogen trichloride — Noun – English ～ a yellow pungent volatile oil (trade name Agene) formerly used for bleaching and aging flour
• nervus trigeminus — Noun – English ～ the main sensory nerve of the face and motor nerve for the muscles of mastication
• no-trump — Noun – English ～ a version of contract bridge in which no suit is designated as trump for the duration of the hand
• Nepal trumpet flower — Noun – English ～ evergreen woody twiner with large glossy leaves and showy corymbs of fragrant white trumpet-shaped flowers

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