Definition of Toxicodendron
1. Noun. In some classifications: comprising those members of the genus Rhus having foliage that is poisonous to the touch; of North America and northern South America.
Generic synonyms: Dicot Genus, Magnoliopsid Genus
Group relationships: Anacardiaceae, Family Anacardiaceae, Sumac Family
Member holonyms: Poison Ash, Poison Dogwood, Poison Sumac, Rhus Vernix, Toxicodendron Vernix, Markweed, Poison Ivy, Poison Mercury, Poison Oak, Rhus Radicans, Toxicodendron Radicans, Rhus Diversiloba, Toxicodendron Diversilobum, Western Poison Oak, Eastern Poison Oak, Rhus Quercifolia, Rhus Toxicodenedron, Toxicodendron Quercifolium, Chinese Lacquer Tree, Japanese Lacquer Tree, Japanese Sumac, Japanese Varnish Tree, Lacquer Tree, Rhus Verniciflua, Toxicodendron Vernicifluum, Varnish Tree
Medical Definition of Toxicodendron
1. A genus (formerly rhus) of shrubs, vines, or trees that yields a highly allergenic oleoresin which causes a severe contact dermatitis. The most toxic species are toxicodendron vernix (poison sumac), t. Diversilobum (poison oak), and t. Radicans (poison ivy). T. Vernicifera yields a useful varnish from which certain enzymes (laccases) are obtained. (12 Dec 1998)
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Lexicographical Neighbors of Toxicodendron
Literary usage of Toxicodendron
Below you will find example usage of this term as found in modern and/or classical literature:
1. The Encyclopedia Americana: A Library of Universal Knowledge (1919)
"... vertical section of flower showing peculiar attachment of stamens (enlarged); ,, fruiting capsules 7 Poison Sumac toxicodendron vernix;, showing leaves ..."
2. Proceedings of the American Pharmaceutical Association at the Annual Meeting by American Pharmaceutical Association, National Pharmaceutical Convention, American Pharmaceutical Association Meeting (1894)
"The following paper on Rhus toxicodendron was then read by HM Whelpley: RHUS ... While the active properties of Rhus toxicodendron may be impaired by drying ..."
3. Modern Surgical Therapeutics: A Compendium of Current Formulæ, Approved by George Henry Napheys (1881)
"The poison oak, Rhus toxicodendron, and the poison ivy, Rhus toxicodendron, var., radicans, are so common over the greater portion of the United States, ..."
4. The Essentials of Materia Medica, and Therapeutics by Alfred Baring Garrod (1865)
"... and an inferior kind is often substituted for good myrrh. Rhus toxicodendron. The leaves of the Rhus toxicodendron (the poison sumach) ; Lin. ..."
5. Quarterly Compendium of Medical Science by D. G. Brinton (1884)
"Rhus toxicodendron as a Remedy for Rheumatic Inflammation of the Sheaths of Nerves and Tendons. In tUe Cinn. Lan. & Clinic, Dr. THOMAS GIFFORD recommends ..."
6. A Clinical Materia Medica: Being a Course of Lectures Delivered at the by Ernest Albert Farrington (1887)
"RHUS toxicodendron. THE drug of which I wish to speak this morning, is the chief member of the Anacardiaceae, namely, the poison-ivy or Rhus toxicodendron. ..."
7. Materia Medica and Therapeutics, for Physicians and Students by John Barclay Biddle (1886)
"... used in the strength of gr. x-xv to mucilage f 5j. RHUS toxicodendron (Poison-Oak). The FRESH LEAVES of Rhus toxicodendron, or Poison-Oak (Nat. ..."
8. Physiological Materia Medica, Containing All that is Known of the by William H. Burt (1881)
"... Rhus toxicodendron has eleven special centers of action : I. SRIN. Vesicular Eri/sip.; Eczema; ..."