# significant digits

### plural noun Mathematics.

all the nonzero digits of a number and the zeros that are included between them or that are final zeros and signify accuracy: The significant digits of 0.01230 are 1, 2, 3, and the final 0, which signifies accuracy to five places.

## Origin of significant digits

First recorded in 1920–25

Also called significant figures.

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

## significant digits

[sĭg-nĭf′ĭ-kənt]

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.