We found 26 dictionaries that define the word approximately:

General (21 matching dictionaries)

1. approximately: Merriam-Webster
2. approximately: Oxford Learner's Dictionaries
3. approximately: Collins English Dictionary
4. approximately: Vocabulary.com
5. Approximately, approximately: Wordnik
6. approximately: Cambridge Advanced Learner's Dictionary
7. approximately: Wiktionary
8. Approximately, approximately: Dictionary.com
9. approximately: Cambridge Essential American English Dictionary
10. Approximately: Wikipedia, the Free Encyclopedia
11. Approximately: Online Plain Text English Dictionary
12. approximately: Webster's Revised Unabridged, 1913 Edition
13. approximately: Rhymezone
14. Approximately: AllWords.com Multi-Lingual Dictionary
15. approximately: FreeDictionary.org
16. approximately: Mnemonic Dictionary
17. approximately: TheFreeDictionary.com
18. approximately: Longman Dictionary of Contemporary English
19. approximately: Merriam-Webster

Business (2 matching dictionaries)

20. approximately: Legal dictionary
21. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

22. approximately: Encyclopedia

Medicine (2 matching dictionaries)

23. approximately: Merriam-Webster Medical Dictionary
24. approximately: Medical dictionary

(Note: See approximate as well.)

Definitions from Wiktionary ( ) ▸ adverb:  Imprecise but close to in quantity or amount. Similar: some, more or less, close to, about, just about, around, roughly, or so, approx, approximatively, more... Opposite: exactly, precisely, specifically, accurately, definitely Types: about, roughly, around, somewhere around, more... Phrases: approximately equal, approximately equal to, Probably approximately correct learning, Approximately Infinite Universe, Queen Jane Approximately, more... Colors:     beige,     taupe,     mauve,     sage,     dusty rose, more... ▸ Words similar to approximately ▸ Usage examples for approximately ▸ Idioms related to approximately ▸ Wikipedia articles (New!) ▸ Words that often appear near approximately ▸ Rhymes of approximately ▸ Invented words related to approximately