Dictionary

decimal point

noun

mathematics : the dot (as in .678 or 3.678) that separates a whole number from tenths, hundredths, etc.

Full Definition of DECIMAL POINT

:  a period, centered dot, or in some countries a comma at the left of a proper decimal fraction (as .678) or between the parts of a mixed number (as 3.678) expressed by a whole number and a decimal fraction

First Known Use of DECIMAL POINT

circa 1771

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