quassia


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to quassia: Quassia amara

quassia

(kwŏsh`ə), name for several tropical trees and for a bitter extract from their bark. The extract containing complex terpenoid compounds called quassinoids is used medicinally as a bitter tonic and a pinworm remedy; it is also used in insecticides, e.g., in flypaper and against aphids. Surinam quassia comes from the tree Quassia amara of N Brazil and surrounding regions; Jamaica quassia comes from Picrasma excelsa of the West Indies. Some Old World quassia species are similarly used. The trees are related to the ailanthus. Quassia is classified in the division MagnoliophytaMagnoliophyta
, division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem).
..... Click the link for more information.
, class Magnoliopsida, order Sapindales, family Simaroubaceae.
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

quassia

1. the bark and wood of Quassia amara and of a related tree, Picrasma excelsa, used in furniture making
2. a bitter compound extracted from this bark and wood, formerly used as a tonic and anthelmintic, now used in insecticides
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
Mentioned in ?
References in periodicals archive ?
These findings encouraged the same researchers--and others aware of their work--to try to isolate the compound within Quassia amara that had proven so effective.
Quassin isolated from Quassia amara enhanced the host protective immune response by enhancing generation of NO and expression of iNOS both at a protein and at mRNA levels and by upregulating proinflammatory cytokines, TNF-[alpha] and IL-12 (Bhattacharjee et al.
Wood (6) lists some important photochemical products such as pyrethrum, derris, quassia, nicotine, hellebore, anabasine, azadirachtin, d-limonene, camphor and terpenes that have been used as insecticides.
A deciduous member of the tropical family Simaroubaceae (Quassia), A.
Agents to be avoided include American hellebore, butterbur or other petasites, kava, marijuana, melatonin (available only as an orphan drug in the United States), mugwort, passion flower, quassia, rauwolfia, Siberian ginseng, taumelloolch, tulip tree, and valerian.
One of them had an important place: the wood of quassia amara.
Fortunately, I had an emergency homeopathic with me, which helped with acute symptoms, and I took that along with a detox extract combining quassia herb, wormwood, and black walnut hulls, along with a dose of grapefruit seed extract.
Use of quassia chips - available in health food shops - is an alternative remedy that's becoming popular with parents, but there are no proper studies to prove it's effective.
..In a quart of wine soak for two days five grammes of juniper berries,15grammes of Calisaia (akind of Peruvian bark)and 15 bitter quassia (whatever they are).