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significant digits
sig·nif·i·cant dig·its


plural noun 
Definition:
 
digits in decimal: the digits necessary in a decimal number to express accuracy, beginning with the first nonzero digit to the right of the decimal and ending with the digit farthest to the right
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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