decimal number
nounUK /ˈdesɪməl ˈnʌmbə/
US /ˈdesɪməl ˈnʌmbər/
A decimal number is a number that uses a dot to show parts of a whole.
The number 3.5 is a decimal number.
RELATED WORDS
OTHER MEANINGS
2. A number written in the base-ten system using digits 0 through 9.
The decimal number 42 is written with two digits.
3. A number that contains a decimal point separating the whole part from the fractional part.
In 12.75, the decimal point comes after the 12.
4. A way of writing numbers that can include tenths, hundredths, and smaller parts.
She wrote 0.25 as a decimal number to show one quarter.