单词 | paraffin |
释义 | paraffin/ˈparəfɪn /noun 1 (also paraffin wax) [mass noun] chiefly British A flammable, whitish, translucent, waxy solid consisting of a mixture of saturated hydrocarbons, obtained by distillation from petroleum or shale and used in candles, cosmetics, polishes, and sealing and waterproofing compounds.Most candles contain paraffin, a petroleum-based wax that produces black soot when burned....
1.1 (also paraffin oil or liquid paraffin) A colourless, flammable, oily liquid similarly obtained and used as fuel, especially kerosene.Many rural people, and those living in a semi-urban situation, had to find their fuel from coal, paraffin, and especially timber....
1.2 [count noun] Chemistry old-fashioned term for alkane.Like pentane, paraffins are alkanes - hydrocarbon molecules that have as many hydrogen atoms as the molecule's carbon backbone can accommodate....
OriginMid 19th century: from German, from Latin parum 'little' + affinis 'related' (from its low reactivity).
|
随便看 |
|
英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。