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Definition of Alkaloid in English :

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Alkaloid meaning in English

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Alkaloid

see synonyms of alkaloid

Noun

1. alkaloid

natural bases containing nitrogen found in plants

WordNet Lexical Database for English. Princeton University. 2010.

Alkaloid

see synonyms of alkaloid
noun
any of a group of nitrogenous basic compounds found in plants, typically insoluble in water and physiologically active. Common examples are morphine, strychnine, quinine, nicotine, and caffeine

Collins English Dictionary. Copyright © HarperCollins Publishers

Alkaloid

see synonyms of alkaloid
noun
any of a number of heterocyclic, colorless, crystalline, bitter organic substances, such as caffeine, morphine, quinine, and strychnine, having alkaline properties and containing nitrogen: they are found in plants and, sometimes, animals, and are used as drugs and stimulants, but can have a strong toxic effect on the human or animal system

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.

Alkaloid

see synonyms of alkaloid
n.
Any of various organic compounds that are usually basic and contain at least one nitrogen atom in a heterocyclic ring, occurring chiefly in flowering plants. Many alkaloids, such as nicotine, quinine, cocaine, and morphine, are known for their poisonous or medicinal attributes.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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