Search Result：significant digit
significant digit 
(TTS Sound)
(TTS Sound)Overview of noun significant_digit
The noun significant digit has 1 sense
- significant digit, significant figure -- (any digit of a number that is known with certainty; any digit of a number beginning with the leftmost non-zero digit and ending with the rightmost non-zero digit (or a zero considered to be the exact value); "he calculated the answer to four significant figures")