单词 | tannoform |
释义 | > as lemmastannoform tannoform n. Brit. /ˈtanə(ʊ)fɔːm/ , U.S. /ˈtænəˌfɔrm/ C29H20O18, a product of gallotannic acid and formaldehyde; a reddish white, light powder, insoluble in water, but soluble in alkaline solutions.ΘΚΠ the world > matter > chemistry > organic chemistry > acids obtained from plants or trees > [noun] > derivatives margaritic acid1819 veratrol1868 tannoform1899 1899 T. C. Allbutt et al. Syst. Med. VIII. 726 Powders of tannoform, salicylic acid, talc, bismuth, or lycopodium may be employed. < as lemmas |
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