We found 20 dictionaries that define the word categorization:

General (15 matching dictionaries)

1. categorization: Merriam-Webster
2. categorization: Oxford Learner's Dictionaries
3. categorization: Collins English Dictionary
4. categorization: Vocabulary.com
5. Categorization, categorization: Wordnik
6. categorization: Cambridge Advanced Learner's Dictionary
7. categorization: Wiktionary
8. categorization: Dictionary.com
9. Categorization: Wikipedia, the Free Encyclopedia
10. categorization: Rhymezone
11. categorization: FreeDictionary.org
12. categorization: Mnemonic Dictionary
13. categorization: TheFreeDictionary.com

Business (1 matching dictionary)

14. categorization: Legal dictionary

Computing (1 matching dictionary)

15. categorization: Encyclopedia

Medicine (1 matching dictionary)

16. Dorland's Illustrated Medical Dictionary (No longer online)

Science (1 matching dictionary)

17. Archaeology Wordsmith (No longer online)

Tech (1 matching dictionary)

18. Explosives (No longer online)

(Note: See categorize as well.)

Definitions from Wiktionary (categorization) ▸ noun:  A group of things arranged by category; a classification. ▸ noun:  The process of sorting or arranging things into categories or classes. Similar: classification, sorting, categorisation, assignment, disposal, class., groupification, decategorization, arrangement, codification, more... Opposite: declassification, uncategorization, disorganization Types: hierarchical, binary, fuzzy, prototype, extensional, intensional, natural, artificial, linguistic, more... Phrases: text categorization, more... Adjectives: social, such, self, racial, easy, simple, perceptual, human, linguistic, broad, initial Colors:     blue,     green,     yellow,     red,     orange, more... ▸ Words similar to categorization ▸ Usage examples for categorization ▸ Idioms related to categorization ▸ Wikipedia articles (New!) ▸ Popular adjectives describing categorization ▸ Words that often appear near categorization ▸ Rhymes of categorization ▸ Invented words related to categorization