butane

FREQ #47375

n. 丁烷 [医] 丁烷

发音

US /ˈbjuːteɪn/

词形变化

butanes 复数 butanes

释义与例句

n.
  1. 1.

    A hydrocarbon (either of the two isomers of C₄H₁₀, n-butane and 2-methylpropane) found in gaseous petroleum fractions.

    丁烷

    可数 不可数 化学
  2. 2.

    The n-butane isomer only.

    不可数 化学 可数

词汇关系

名词

上位词 4

gas fuel paraffin alkane

词源

PIE word *gʷṓws IUPAC nomenclature, from but- (“four carbon prefix”) + -ane (“alkane suffix”), the former is derived from the same stem as the foul-smelling carboxylic acid liberated in rancid butter, "butyric acid", hence cognate with butter.

来源：wiktionary