significant digit


Definition of significant digit

: any of the digits of a number beginning with the digit farthest to the left that is not zero and ending with the last digit farthest to the right that is either not zero or that is a zero but is considered to be exact

called also significant figure

Examples of significant digit in a Sentence

Recent Examples on the Web How many significant digits of these numbers can be trusted? Quanta Magazine, "Solution: ‘Which Forecasts Are True?’," 26 Oct. 2016

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'significant digit.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of significant digit

1923, in the meaning defined above

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The first known use of significant digit was in 1923

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Cite this Entry

“Significant digit.” Dictionary, Merriam-Webster, Accessed 7 Jul. 2020.

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