We found 13 dictionaries that define the word de facto standard:

General (2 matching dictionaries)

1. de facto standard: Dictionary.com
2. De facto standard: Wikipedia, the Free Encyclopedia

Art (1 matching dictionary)

3. ODLIS: Online Dictionary of Library and Information Science (No longer online)

Business (3 matching dictionaries)

4. De-facto standard, De facto-standard, De facto standard: Legal dictionary
5. De-facto standard, De facto-standard, De facto standard: Financial dictionary
6. BusinessDictionary.com (No longer online)

Computing (4 matching dictionaries)

7. de facto standard: Free On-line Dictionary of Computing
8. de facto standard: Netlingo
9. de facto standard: CCI Computer
10. de facto standard: Encyclopedia

Medicine (1 matching dictionary)

11. online medical dictionary (No longer online)

Science (2 matching dictionaries)

12. FOLDOP - Free On Line Dictionary Of Philosophy (No longer online)

Definitions from Wikipedia (De facto standard) ▸ noun:  A de facto standard is a custom or convention that is commonly used even though its use is not required. ▸ Words similar to de facto standard ▸ Usage examples for de facto standard ▸ Idioms related to de facto standard ▸ Wikipedia articles (New!) ▸ Words that often appear near de facto standard ▸ Rhymes of de facto standard ▸ Invented words related to de facto standard