We found 9 dictionaries that define the word Zipf's law:

General (2 matching dictionaries)

1. Zipf's law: Wiktionary
2. Zipf's Law, Zipf's law: Wikipedia, the Free Encyclopedia

Art (1 matching dictionary)

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

Business (1 matching dictionary)

4. Zipf's Law: Deardorff's Glossary of International Economics

Computing (2 matching dictionaries)

5. Zipf's Law: Cybernetics and Systems
6. Zipf's law: Dictionary of Algorithms and Data Structures

Science (3 matching dictionaries)

7. A Glossary of Mathematical Terms (No longer online)
8. Zipf's Law: Eric Weisstein's World of Mathematics
9. Zipf's law: PlanetMath Encyclopedia

Definitions from Wiktionary (Zipf's law) ▸ noun:  The fact that many types of data studied in the physical and social sciences can be approximated with a Zipfian distribution. ▸ Words similar to Zipf's law ▸ Usage examples for Zipf's law ▸ Idioms related to Zipf's law ▸ Wikipedia articles (New!) ▸ Words that often appear near Zipf's law ▸ Rhymes of Zipf's law ▸ Invented words related to Zipf's law