形容词

1. 十进位的
A decimal system involves counting in units of ten.

2. 小数
A decimal is a fraction that is written in the form of a dot followed by one or more numbers which represent tenths, hundredths, and so on: for example .5, .51, .
517.

1. a number in the decimal system

2. a proper fraction whose denominator is a power of 10

Synonym: decimal fraction