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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 Late Latin amygdalus, almond tree, from Greek amygdalos.]


(Pharmacology) a white soluble bitter-tasting crystalline glycoside extracted from bitter almonds and stone fruits such as peaches and apricots. Formula: C6H5CHCNOC12H21O10


(əˈmɪg də lɪn)

a white, bitter-tasting, water-soluble, glycosidic powder, C20H27NO11, used chiefly as an expectorant.
[1645–55; < Latin amygdal(a) almond (from which it is obtained) + -in1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.amygdalin - a bitter cyanogenic glucoside extracted from the seeds of apricots and plums and bitter almonds
laetrile - a substance derived from amygdalin; publicized as an antineoplastic drug although there is no supporting evidence
glucoside - a glycoside derived from glucose
References in periodicals archive ?
A Google search for vitamin B17 returns over 400,000 hits.
Paul Reid insists that the "cancer-killing" properties in the kernels, rich in vitamin B17, and a strict vegetarian diet have cured him, despite the doctors telling him he would live for just five more years.
Vitamin B17, amygdalin or laetrile, though little known by the general public, has become a subject of debate for cancer victims and natural healing practitioners on the one hand and medical professionals, researchers and special interest groups on the other.
I took Essiac tincture and vitamin B17, which is said to break down tumours.
Arwel Jones, who was previously jailed and struck off the medical register for downloading child pornography, was allegedly caught by an undercover Sky News reporter offering vitamin B17 injections at his private clinic in Chester.