/ˈdesɪml ||; ˈdɛsəmḷ/(also ˌdecimal ˈfraction) noun [C] (mathematics数学) a FRACTION (= a number less than one) that is shown as a decimal point followed by the number of TENTHS, HUNDREDTHS, etc 小数；十进小数: Three quarters expressed as a decimal is 0.75. 四分之三以小数表示就是0.75。 ☞Compare vulgar fraction. 与vulgar fraction比较。