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paraffine n. 石蜡;地蜡;石蜡油;煤油 石蜡;地蜡;石蜡油;煤油 Paraffin \ Par" af* fin\ ( p[ a^] r"[ a^] f* f[ i^] n), Paraffine\ Par" af* fine\ ( p[ a^] r"[ a^] f* f[ i^] n or p[ a^] r"[ a^] f* f[= e] n), n. [ F. paraffine, fr. L. parum too little affinis akin. So named in allusion to its chemical inactivity.] ( Chem.) A white waxy substance, resembling spermaceti, tasteless and odorless, and obtained from coal tar, wood tar, petroleum, etc., by distillation. It is used in candles, as a sealing agent ( such as in canning of preserves), as a waterproofing agent, as an illuminant and as a lubricant. It is very inert, not being acted upon by most of the strong chemical reagents. It was formerly regarded as a definite compound, but is now known to be a complex mixture of several higher hydrocarbons of the methane or marsh- gas series; hence, by extension, any substance, whether solid, liquid, or gaseous, of the same chemical series; thus gasoline, coal gas and kerosene consist largely of paraffins. [ 1913 Webster PJC] Note: In the present chemical usage this word is spelled paraffin, but in commerce it is commonly spelled paraffine. [ 1913 Webster] { Native paraffin}. See { Ozocerite}. { Paraffin series}. See { Methane series}, under { Methane}. [ 1913 Webster]
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