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, 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

Keep scrolling for more

Learn More About significant digit

Time Traveler for significant digit

Time Traveler

The first known use of significant digit was in 1923

See more words from the same year

Statistics for significant digit

Cite this Entry

“Significant digit.” Dictionary, Merriam-Webster, Accessed 18 Jun. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon


Test Your Vocabulary

Name that Thing: Dog Breeds

True or False

Test your knowledge - and maybe learn something along the way.

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!