Definitions of alkaloid
  1. noun
    natural bases containing nitrogen found in plants
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    a poisonous crystalline alkaloid extracted from the nightshade family; used as an antispasmodic and to dilate the eye pupil; also administered in large amounts as an antidote for organophosphate nerve agents or organophosphate insecticides
    a poisonous crystalline alkaloid (isometric with atropine but more potent); used to treat excess motility of the gastrointestinal tract
    cholinergic alkaloid used in eyedrops to treat glaucoma
    hyoscine, scopolamine
    an alkaloid with anticholinergic effects that is used as a sedative and to treat nausea and to dilate the pupils in ophthalmic procedures
    used in treatment of Alzheimer's disease and glaucoma
    an alkaloid derivative of the bark of cinchona trees that is used as an antimalarial drug
    white odorless powdered or crystalline alkaloid from plants of the genus Ephedra (especially Ephedra sinica) or made synthetically; used as a bronchodilator to treat bronchitis and asthma
    Ergotrate Maleate, ergonovine
    an alkaloid derived from ergot (trade name Ergotrate Maleate) that is less toxic than ergot; induces muscular contraction of the uterus and is administered after childbirth or abortion
    an alkaloid derived from ergot that is less toxic than ergot; causes constriction of blood vessels and is used to treat migraine
    poisonous crystalline alkaloid occurring with ephedrine and isomorphic with it
    an alkaloid poison that occurs in tobacco; used in medicine and as an insecticide
    an alkaloid plant toxin extracted chiefly from nux vomica; formerly used as a stimulant
    a bitter alkaloid poison resembling strychnine and extracted from nux vomica
    a sweet tasting alkaloid that occurs in sugar beets
    caffein, caffeine
    a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects
    any of several alkaloids extracted from the shrub Rauwolfia serpentina
    curare, tubocurarine
    a toxic alkaloid found in certain tropical South American trees that is a powerful relaxant for striated muscles
    an alkaloidal extract or tincture of the poisonous belladonna plant that is used medicinally
    type of:
    organic compound
    any compound of carbon and another element or a radical
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