A terminating decimal is usually defined as a decimal number that contains a finite number of digits after the decimal point.
A terminating decimal like 13.2 can be represented as the repeating decimal 13.20000000000000..., but when the repeating digit is zero, the number is usually labelled as terminating.
All terminating decimals are rational numbers that can be written as reduced fractions with denominators containing no prime number factors other than two or five.