* * *
a pyroligneous oil obtained by dry distillation of the bark and wood of various birches (genus Betula), especially B. alba, rectified by steam distillation; used topically in the treatment of eczema and other dermatitides.Medical dictionary. 2011.
birch-tar oil — ˈ ̷ ̷ˌ ̷ ̷ noun : a brown toxic phenolic oil obtained by destructive distillation of the bark and wood of the European white birch and used in finishing Russia leather to which it gives the characteristic odor and sometimes in ointments for skin… … Useful english dictionary
birch tar — SYN: b. oil … Medical dictionary
birch oil — noun a liquid ester with a strong odor of wintergreen; applied externally for minor muscle and joint pain • Syn: ↑methyl salicylate, ↑sweet birch oil • Hypernyms: ↑salicylate • Substance Holonyms: ↑wintergreen oil, ↑oil … Useful english dictionary
Birch — Taxobox name = Birch image width = 240px image caption = Silver Birch regnum = Plantae divisio = Magnoliophyta classis = Magnoliopsida ordo = Fagales familia = Betulaceae genus = Betula genus authority = L. subdivision ranks = Species subdivision … Wikipedia
Oil sands — The Athabasca oil sands in Alberta, Canada, are a very large source of bitumen, which can be upgraded to synthetic crude oil. Bituminous sands, colloquially known as oil sands or tar sands, are a type of unconventional petroleum deposit. The… … Wikipedia
Oil megaprojects (2013) — This page summarizes projects that propose to bring more than 20,000 barrels per day (3,200 m3/d) of new liquid fuel capacity to market with the first production of fuel beginning in 2013. This is part of the Wikipedia summary of Oil… … Wikipedia
Oil megaprojects (2015) — This page summarizes projects that propose to bring more than 20,000 barrels per day (3,200 m3/d) of new liquid fuel capacity to market with the first production of fuel beginning in 2015. This is part of the Wikipedia summary of Oil… … Wikipedia
betula — European white birch, bark and leaves of B. alba (family Betulaceae); native to Europe, northern Asia, and North America, north of Pennsylvania. It contains betulin (b. camphor), betuloresinic acid, volatile oil, saponins, betulol (sesquiterpine… … Medical dictionary
New car smell — is the common term for the odor that comes from the combination of materials found in new automobiles. Some people regard it as a pleasant and desirable smell. However, there is some question about whether the chemicals in the odour pose a health … Wikipedia
perfume — perfumeless, adj. perfumy, adj. n. /perr fyoohm, peuhr fyoohm /; v. /peuhr fyoohm , perr fyoohm/, n., v., perfumed, perfuming. n. 1. a substance, extract, or preparation for diffusing or imparting an agreeable or attractive smell, esp. a fluid… … Universalium
