We found 23 dictionaries that define the word ideation:

General (17 matching dictionaries)

1. ideation: Merriam-Webster
2. ideation: Oxford Learner's Dictionaries
3. ideation: Collins English Dictionary
4. ideation: Vocabulary.com
5. Ideation, ideation: Wordnik
6. ideation: Wiktionary
7. ideation: Webster's New World College Dictionary, 4th Ed.
8. ideation: Infoplease Dictionary
9. ideation: Dictionary.com
10. Ideation (creative process), Ideation (disambiguation), Ideation (idea generation), Ideation: Wikipedia, the Free Encyclopedia
11. Ideation: Online Plain Text English Dictionary
12. ideation: Webster's Revised Unabridged, 1913 Edition
13. ideation: Rhymezone
14. Ideation: AllWords.com Multi-Lingual Dictionary
15. ideation: FreeDictionary.org
16. ideation: Mnemonic Dictionary
17. ideation: TheFreeDictionary.com

Business (1 matching dictionary)

18. ideation: Legal dictionary

Computing (1 matching dictionary)

19. ideation: Encyclopedia

Medicine (4 matching dictionaries)

20. ideation: Merriam-Webster Medical Dictionary
21. Dorland's Illustrated Medical Dictionary (No longer online)
22. online medical dictionary (No longer online)
23. ideation: Medical dictionary

(Note: See ideations as well.)

Definitions from Wiktionary (ideation) ▸ noun:  The conceptualization of a mental image. ▸ noun:  (often business) The synthesis of ideas. Similar: conception, idea, conceit, conceptualization, visioning, mind's eye, notion, imagination, intellection, envisioning, more... Opposite: non-ideation Types: brainstorming, lateral thinking, freewriting, doodling, more... Phrases: suicidal ideation, paranoid ideation, Homicidal ideation, manifesting and ideation, ideation convergence, more... Adjectives: suicidal, paranoid, homicidal, delusional, recurrent, psychotic, current, bizarre, suicide, conscious, active Colors:     blue,     green,     yellow,     orange,     purple, more... ▸ Words similar to ideation ▸ Usage examples for ideation ▸ Idioms related to ideation ▸ Wikipedia articles (New!) ▸ Popular adjectives describing ideation ▸ Words that often appear near ideation ▸ Rhymes of ideation ▸ Invented words related to ideation