the position of a digit to the right of a decimal point; a specific number of digits to the right of the decimal point in a line of numbers.

noun

the position of a digit after the decimal point, each successive position to the right having a denominator of an increased power of tenin 0.025, 5 is in the third decimal place

the number of digits to the right of the decimal point3.142 is a number given to three decimal places Compare significant figures (def. 2)

The position of a digit to the right of the decimal point in a number written in decimal notation. In 0.079, for example, 0 is in the first decimal place, 7 is in the second decimal place, and 9 is in the third decimal place.