noun
recurring decimal; repeating decimal
Mathematical term for a decimal with a repeating pattern of digits.
三分の一は循環小数で、零点三三三と表される。
One third is a repeating decimal and is written as 0.333.
有限小数 is a terminating decimal, while 循環小数 is a repeating decimal.
Compound of 循環 (cycle, circulation) and 小数 (decimal).