We found 22 dictionaries that define the word peaking:

General (15 matching dictionaries)

1. peaking: Merriam-Webster
2. peaking: Collins English Dictionary
3. peaking: Vocabulary.com
4. Peaking, peaking: Wordnik
5. peaking: Cambridge Advanced Learner's Dictionary
6. peaking: Wiktionary
7. Peaking, peaking: Dictionary.com
8. peaking: Cambridge Essential American English Dictionary
9. Peaking: Wikipedia, the Free Encyclopedia
10. Peaking: Online Plain Text English Dictionary
11. peaking: Webster's Revised Unabridged, 1913 Edition
12. Peaking: AllWords.com Multi-Lingual Dictionary
13. peaking: Webster's 1828 Dictionary
14. peaking: FreeDictionary.org
15. Peaking: TheFreeDictionary.com

Business (2 matching dictionaries)

16. peaking: Legal dictionary
17. peaking: Financial dictionary

Computing (1 matching dictionary)

18. peaking: Encyclopedia

Medicine (1 matching dictionary)

19. peaking: Medical dictionary

Slang (1 matching dictionary)

20. PEAKING: Urban Dictionary

Tech (2 matching dictionaries)

21. AUTOMOTIVE TERMS (No longer online)
22. Lake and Water Word Glossary (No longer online)

(Note: See peak as well.)

Definitions from Wiktionary (peaking) ▸ noun:  The act of something reaching a peak. ▸ adjective:  peaky; sickly; pining Similar: tip, elevation, top, summit, high, height, crest, flush, pinnacle, bill, more... Opposite: trough, valley Types: exponential, logarithmic, quadratic, polynomial, power, linear, sigmoid, logistic, more... Phrases: peaking capacity, peaking unit, Peaking power plant, Focus peaking, peaking out, more... Adjectives: forward, strong, broad, early, late, sharp, multiple, inductive, backward, slight, excessive Colors:     sunrise orange,     dawn pink,     horizon blue,     aurora green,     blush pink, more... ▸ Words similar to peaking ▸ Usage examples for peaking ▸ Idioms related to peaking ▸ Wikipedia articles (New!) ▸ Popular adjectives describing peaking ▸ Popular nouns described by peaking ▸ Words that often appear near peaking ▸ Rhymes of peaking ▸ Invented words related to peaking