recurring decimal
noun🔊/rɪˌkɜːrɪŋ ˈdesɪml/
🔊/rɪˌkɜːrɪŋ ˈdesɪml/
(also repeating decimal)
(a decimal in which the same figure or group of figures is repeated forever, for example 3.999… 循环小数 The recurring decimal 3.999… is also described as 3.9 recurring. 循环小数 3.999 ... 亦作 3.9 （9 循环）。