- (arithmetic, computing) Concerning numbers expressed in decimal or mathematical calculations performed using decimal.
- (informal) A decimal place.
"Pi has a value of 3.141, to three decimals."
- (countable) A number expressed in this system.
- (informal) A decimal point.
- (arithmetic, computing, uncountable) The number system that uses the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.
- (informal) A numeral written as a concatenation of successive negative powers of the base.