digitalis purpurea

7 definitions found

digitalis purpurea - Collaborative International Dictionary of English v.0.48 :

  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]

  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]

  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]

  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]

  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]

  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]

digitalis purpurea - WordNet (r) 2.1 (2005) :

  Digitalis purpurea
      n 1: 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
           ]