We found 12 dictionaries that define the word significant digits:

General (8 matching dictionaries)

1. significant digits: American Heritage Dictionary of the English Language
2. significant digits: Collins English Dictionary
3. significant digits: Vocabulary.com
4. significant digits: Wiktionary
5. significant digits: Infoplease Dictionary
6. significant digits: Dictionary.com
7. Significant digits: Wikipedia, the Free Encyclopedia
8. significant digits: TheFreeDictionary.com

Business (1 matching dictionary)

9. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

10. significant digits: Encyclopedia

Science (2 matching dictionaries)

11. Archaeology Wordsmith (No longer online)
12. Significant Digits: Eric Weisstein's World of Mathematics

(Note: See significant_digit as well.)

Definitions from Wiktionary (significant digit) ▸ noun:  (mathematics) Synonym of significant figure ▸ Also see significant_digit ▸ Words similar to significant digits ▸ Usage examples for significant digits ▸ Idioms related to significant digits ▸ Wikipedia articles (New!) ▸ Words that often appear near significant digits ▸ Rhymes of significant digits ▸ Invented words related to significant digits