# Decimal meaning

dĕs'ə-məl
Decimal is defined as a system of numbers or currency where everything is based on the number ten, or on parts of ten.

3.432 is an example of a number described as a decimal number.

A linear array of digits that contains a single period, called the decimal point, is possibly preceded by a minus sign (−), and represents a real number, with each successive digit to the right of the decimal point indicating a multiple of the next negative power of 10, and each successive digit to the left of the decimal point indicating a multiple of the next non-negative power of ten, beginning with 100 = 1. For example, 245.3 represents the real number (2 × 102 ) + (4 × 101 ) + (5 × 100 ) + (3 × 10−1 ) = 200 + 40 + 5 +310 , and −1.04 represents the real number (−1 × 100 ) + (−4 × 10−2 ).
noun
Such an array of digits in which there are no nonzero digits to the left of the decimal point, representing a real number between −1 and 1.
noun
Expressed or expressible as a decimal.
Based on 10.
Numbered or ordered by groups of 10.
Of or based on the number 10; progressing by tens.
A fraction with an unwritten denominator of 10 or some power of 10, indicated by a point (decimal point) before the numerator (Ex.: .5 =510)
noun
Any number written using a decimal point.
noun
A representation of a real number using the base ten and decimal notation, such as 201.4, 3.89, or 0.0006.
A decimal fraction.
Meaning 10. The numbering system used by humans, which is based on 10 digits. In contrast, computers use binary numbers because it is easier to design electronic systems that can maintain two states rather than 10.
(arithmetic, computing, uncountable) The number system that uses the digits 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9.
noun
(countable) A number expressed in this system.
noun
(informal) A decimal place.

Pi has a value of 3.141, to three decimals.

noun
(informal) A numeral written as a concatenation of successive negative powers of the base.
noun
(informal) A decimal point.
noun
(arithmetic, computing) Concerning numbers expressed in decimal or mathematical calculations performed using decimal.