Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A glycoside, C20H27NO11, commonly found in seeds and other plant parts of many members of the rose family, such as kernels of the apricot, peach, and bitter almond, which breaks down into hydrocyanic acid, benzaldehyde, and glucose.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a glycoside of benzaldehyde and hydrogen cyanide found in bitter almonds, and in the kernels of some other fruit

from the GNU version of the Collaborative International Dictionary of English

  • n. A glucoside extracted from bitter almonds as a white, crystalline substance.

from The Century Dictionary and Cyclopedia

  • n. A crystalline principle (C20H27NO11 + 3H2O) existing in bitter almonds, and in the leaves, etc., of species of the genus Prunus and of some of its near allies.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a bitter cyanogenic glucoside extracted from the seeds of apricots and plums and bitter almonds

Etymologies

From Late Latin amygdalus, almond tree, from Greek amygdalos.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

  • The kernels contain amygdalin, which contains cyanide.

    Sweet Apricot Kernels, reviewed | Baking Bites

  • Thus if an animal that has been given amygdalin is then injected with emulsin, hydrocyanic acid will be formed in the blood stream and death will take place at once.

    Charles Richet - Nobel Lecture

  • A group of researchers at the Department of Environmental and Evolutionary Biology and the Department of University of Haifa-Oranim speculate that the toxin called amygdalin that is found in almond tree nectar is in fact an evolutionary

    WN.com - Articles related to Are Bees Addicted To Caffeine And Nicotine?

  • The toxin called amygdalin that is found in almond tree nectar is in fact an evolutionary development intended to give that tree an advantage over others in its surroundings

    THE MEDICAL NEWS

  • A group of researchers at the Department of Environmental and Evolutionary Biology and the Department of Science Education at the University of Haifa-Oranim speculate that the toxin called amygdalin that is found in almond tree nectar is in fact an evolutionary development intended to give that tree an advantage over others in its surroundings.

    RedOrbit News - Technology

  • Bitter apricot kernels naturally contain a compound called amygdalin, which has the potential to release cyanide when the kernels are ingested.

    CTV News RSS Feed

  • Bitter almonds contain two substances: amygdalin which is harmless and emulsin which is harmless too.

    Charles Richet - Nobel Lecture

  • A clinical trial of amygdalin was carried out in 1982 by the Mayo Clinic and three other US cancer centers under National Cancer Institute sponsorship, and found that, “No substantive benefit was observed in terms of cure …” and more than 2 of the 178 patients suffered from cyanide toxicity.

    Sweet Apricot Kernels, reviewed | Baking Bites

  • But emulsin is a diastase and has the property of breaking up amygdalin, liberating hydrocyanic acid, which is one of the most virulent toxic gases known.

    Charles Richet - Nobel Lecture

  • Yet injected separately, neither the amygdalin nor the emulsin has any effect.

    Charles Richet - Nobel Lecture

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