We found 12 dictionaries that define the word data hierarchy:

General (7 matching dictionaries)

1. data hierarchy: Vocabulary.com
2. data hierarchy: Dictionary.com
3. Data hierarchy: Wikipedia, the Free Encyclopedia
4. data hierarchy: Rhymezone
5. data hierarchy: FreeDictionary.org
6. data hierarchy: Mnemonic Dictionary
7. data hierarchy: TheFreeDictionary.com

Computing (2 matching dictionaries)

8. data hierarchy: Free On-line Dictionary of Computing
9. data hierarchy: Encyclopedia

Medicine (1 matching dictionary)

10. online medical dictionary (No longer online)

Science (2 matching dictionaries)

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

Definitions from Wikipedia (Data hierarchy) ▸ noun:  Data hierarchy refers to the systematic organization of data, often in a hierarchical form. ▸ Words similar to data hierarchy ▸ Usage examples for data hierarchy ▸ Idioms related to data hierarchy ▸ Wikipedia articles (New!) ▸ Words that often appear near data hierarchy ▸ Rhymes of data hierarchy ▸ Invented words related to data hierarchy