'Digitalis purpurea' definitions:

Definition of 'Digitalis purpurea'

noun

Tall leafy European biennial or perennial having spectacular clusters of large tubular pink-purple flowers; leaves yield drug digitalis and are poisonous to livestock [syn: common foxglove, fairy bell, fingerflower, finger-flower, fingerroot, finger-root, Digitalis purpurea]

From: GCIDE

fingerroot \fingerroot\ n. tall leafy European biennial or perennial ({Digitalis purpurea}) having spectacular clusters of large tubular pink-purple flowers; -- its leaves yield the drug digitalis and are poisonous to livestock.
Syn: common foxglove, fairy bell, fingerflower, {Digitalis purpurea}. [WordNet 1.5]

From: GCIDE

fingerroot \fingerroot\ n. tall leafy European biennial or perennial ({Digitalis purpurea}) having spectacular clusters of large tubular pink-purple flowers; -- its leaves yield the drug digitalis and are poisonous to livestock.
Syn: common foxglove, fairy bell, fingerflower, {Digitalis purpurea}. [WordNet 1.5]

From: GCIDE

Digitalis \Dig`i*ta"lis\, n. [NL.: cf. F. digitale. So named (according to Linn[ae]us) from its finger-shaped corolla.]
1. (Bot.) A genus of plants of the family Schrophulariaceae, including the foxglove. [1913 Webster]
2. (Med.) The dried leaves of the purple foxglove ({Digitalis purpurea}), formerly used in heart disease, disturbance of the circulation, etc. Its use has been largely replaced by that of the pure active ingredient, digitalin. See digitalin. [1913 Webster]

From: GCIDE

digitalin \dig"i*ta`lin\, n. [Cf. F. digitaline.] (a) (Medicine, Pharmacy) Any one of several extracts of foxglove (Digitalis), as the "French extract," the "German extract," etc., which differ among themselves in composition and properties. Both Digitalis lanata and Digitalis purpurea have been used to prepare such extracts. (b) (Chem.) the distinctive chemical substance, a steroid glycoside, which is the essential ingredient of the extracts of foxglove. It is a white, crystalline substance (C36H56O14), and is a 3-substituted diglucoside of a steroid. It is a powerful cardiac stimulant and is used as a cardiotonic for treatment of certain heart conditions, such as congestive heart failure. Chemically it is
(3[beta],5[beta],16[beta])-3-[6-Deoxy-4-O-[beta]-D-glucopyranosyl-3-O-methyl-[beta]-D-galactopyranosyl)oxy]-14,16-dihyroxy-card-20 (22)-enolide. The related compounds digitoxin and digoxin are also extracted from the foxglove. The class of steroid glycosides having cardiotonic properties are refered to as the cardiac glycosides. --MI11
Syn: digitalinum verum, Diginorgin, Schmiedeberg's digitalin, digitalis, digitalis glycoside. [1913 Webster +PJC]

From: GCIDE

digitoxin \dig`i*tox"in\ (d[i^]j`[i^]*t[o^]k"s[i^]n), n. (Chem.) A steroid glycoside, one of the cardiotonic chemical substances which is extracted from the foxglove. It is a white, crystalline substance (C41H64O13), and is a 3-substituted triglucoside of a steroid, related structurally to digitalin and digoxin. It is used as a cardiotonic for treatment of certain heart conditions, such as congestive heart failure. Chemically it is
(3[beta],5[beta])-3-[(O-2,6-Dideoxy-[beta]-D-ribo-hexopyranosyl-(1[rarr]4)-O-2,6-dideoxy-[beta]-D-ribo-hexopyranosyl-(1[rarr]4)-2, 6-dideoxy-[beta]-D-ribo-hexopyranosyl)oxy]-14-hydroxy-card-20(22)-enolide. The related compounds digitalin and digoxin are also extracted from the foxglove (Digitalis lanata and Digitalis purpurea). The class of steroid glycosides having cardiotonic properties are refered to as the cardiac glycoside group. --MI11 [PJC]

From: GCIDE

digoxin \di*gox"in\, n. (Chem.) a steroid glycoside, one of the cardiotonic chemical substances which is extracted from the foxglove. It is a white, crystalline substance (C41H64O14), and is a 3-substituted triglucoside of a steroid, related structurally to digitalin and digitoxin. It is used as a cardiotonic for treatment of certain heart conditions, such as congestive heart failure. Chemically it is
(3[beta],5[beta],12[beta])-3-[(O-2,6-Dideoxy-[beta]-D-ribo-hexopyranosyl-(1->4)-O-2,6-dideoxy-[beta]-D-ribo-hexopyranosyl-(1->4)-2 , 6-dideoxy-[beta]-D-ribo-hexopyranosyl)oxy]-12,14-dihydroxy-card-20(22)-enolide. The related compounds digitalin and digoxin are also extracted from the foxglove (Digitalis lanata and Digitalis purpurea). The class of steroid glycosides having cardiotonic properties are refered to as the cardiac glycosides. --MI11 [PJC]

From: GCIDE

Foxglove \Fox"glove`\, n. [AS. foxes-gl[=o]fa, foxes-cl[=o]fa,foxes-clife.] (Bot.) Any plant of the genus Digitalis. The common English foxglove (Digitalis purpurea) is a handsome perennial or biennial plant, whose leaves are used as a powerful medicine, both as a sedative and diuretic. See Digitalis. [1913 Webster]
Pan through the pastures oftentimes hath run To pluck the speckled foxgloves from their stem. --W. Browne. [1913 Webster]