| NICOTIN | • nicotin n. Dated form of nicotine. • NICOTIN n. a poisonous alkaloid in tobacco, also NICOTINE.
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| NICOTIAN | • nicotian adj. (Dated) Relating to, or derived from, tobacco. • NICOTIAN n. a tobacco smoker.
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| NICOTINE | • nicotine n. (Organic chemistry) An alkaloid (C10H14N2), commonly occurring in the tobacco plant. In small doses… • nicotine n. (Figuratively) Tobacco, cigarettes.
 • NICOTINE n. a poisonous alkaloid in tobacco, also NICOTIN.
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| NICOTINS | • nicotins n. Plural of nicotin. • NICOTIN n. a poisonous alkaloid in tobacco, also NICOTINE.
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| NICOTIANA | • nicotiana n. (Horticulture) Any ornamental plant of the genus Nicotiana. • nicotiana n. Literature dealing with tobacco-smoking.
 • Nicotiana prop.n. A taxonomic genus within the family Solanaceae – the tobacco plants.
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| NICOTIANS | • NICOTIAN n. a tobacco smoker. | 
| NICOTINED | • nicotined adj. Stained by nicotine. • NICOTINED adj. containing nicotine.
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| NICOTINES | • nicotines n. Plural of nicotine. • NICOTINE n. a poisonous alkaloid in tobacco, also NICOTIN.
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| NICOTINIC | • nicotinic adj. (Chemistry) Of or pertaining to nicotine or nicotinic acid or its derivatives. • nicotinic adj. Of or pertaining to niacin.
 • NICOTINIC adj. pertaining to, or derived from, nicotine.
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| NICOTIANAS | • nicotianas n. Plural of nicotiana. • NICOTIANA n. any plant of the tobacco genus Nicotiana, of the family Solanaceae.
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| NICOTINISM | • nicotinism n. Nicotine poisoning (especially as a result of tobacco use). • nicotinism n. Addiction to nicotine.
 • NICOTINISM n. a morbid state induced by excessive use of tobacco.
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| NICOTINISMS | • NICOTINISM n. a morbid state induced by excessive use of tobacco. | 
| NICOTINAMIDE | • nicotinamide n. (Biochemistry, organic chemistry) The amide of nicotinic acid (or niacin). • NICOTINAMIDE n. a member of the vitamin B complex, deficiency of which can lead to the development of the disease pellagra.
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| NICOTINAMIDES | • nicotinamides n. Plural of nicotinamide. • NICOTINAMIDE n. a member of the vitamin B complex, deficiency of which can lead to the development of the disease pellagra.
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