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jalap
jal·ap J0011400 (jăl′əp, jä′ləp)n.1. A twining eastern Mexican vine (Ipomoea purga) having tuberous roots that are dried, powdered, and used medicinally as a purgative.2. The purgative drug obtained from the roots of this plant or related plants.
[French, from American Spanish jalapa, short for (purga de) Jalapa, (purgative of) Jalapa, after Jalapa.]jalap (ˈdʒæləp) or jalopn1. (Plants) a Mexican convolvulaceous plant, Exogonium (or Ipomoea) purga2. (Plants) any of several similar or related plants3. (Medicine) the dried and powdered root of any of these plants, used as a purgative4. (Plants) the resin obtained from any of these plants[C17: from French, from Mexican Spanish jalapa, short for purga de Jalapa purgative of Jalapa] jalapic adjjal•ap (ˈdʒæl əp, ˈdʒɑ ləp)
n. 1. the dried tuberous root of any of several plants, esp. Exogonium purga, of the morning glory family, or the powder derived from it, used in medicine chiefly as a purgative. 2. any of these plants. [1665–75; < Middle French < Sp (purga de) Jalapa purgative from Jalapa] ja•lap•ic (-ˈlæp ɪk) adj. Jalap
jalap[′jal·əp] (materials) An orange or reddish solid or a yellowish to brown powder with acrid taste and slight odor; the dried tuberous root of a Mexican plant (Exogonium purga), or the drug prepared from it; used as a cathartic in medicine. Jalap (Ipomoea purga), an herbaceous perennial twining plant of the family Convolvulaceae. (The plant is sometimes separated into the genus Exogonium.) The thin, creeping rhizome has thickened tuberous roots. The leaves are cordate. The flowers are large, funnelform, and pinkish violet; one to three flowers are borne by each axillary peduncle. The jalap plant is native to the moist mountainous forests of Mexico. It is cultivated as a medicinal plant in Mexico, Central America, the West Indies, and India. The roots contain 8–12 percent resin, almost 95 percent of which consists of the glycoside convolvulin. Preparations made from dried roots are used as a strong laxative. REFERENCEMurav’eva, D. A., and A. F. Gammerman. Tropicheskie i subtropicheskie lekarstvennye rasteniia, Moscow, 1974.jalap
jal·ap (jal'ap), The dried tuberous root of Exogonium purga, E. jalapa, or Ipomoea purga (family Convolvulaceae); used as a cathartic. [Jalapa or Xalapa, a Mexican city from which the drug was exported] jalap (jăl′əp, jä′ləp)n.1. A twining eastern Mexican vine (Ipomoea purga) having tuberous roots that are dried, powdered, and used medicinally as a purgative.2. The purgative drug obtained from the roots of this plant or related plants. |