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We found 17 dictionaries with English definitions that include the word planck:
Click on the first link on a line below to go directly to a page where "planck" is defined.

General (14 matching dictionaries)

1. Planck: Merriam-Webster.com [home, info]
2. Planck: Collins English Dictionary [home, info]
3. Planck: Vocabulary.com [home, info]
4. Planck, planck: Wordnik [home, info]
5. Planck: Wiktionary [home, info]
6. Planck: Webster's New World College Dictionary, 4th Ed. [home, info]
7. Planck: Infoplease Dictionary [home, info]
8. Planck: Dictionary.com [home, info]
9. Planck (crater), Planck (disambiguation), Planck (spacecraft), Planck: Wikipedia, the Free Encyclopedia [home, info]
10. Planck: Rhymezone [home, info]
11. planck: Free Dictionary [home, info]
12. planck: Mnemonic Dictionary [home, info]
13. Planck, planck: LookWAYup Translating Dictionary/Thesaurus [home, info]
14. Planck: Dictionary/thesaurus [home, info]

Computing (1 matching dictionary)

15. planck: Encyclopedia [home, info]

Science (2 matching dictionaries)

16. Planck: UNCChem Glossary [home, info]
17. planck: How Many? A Dictionary of Units of Measurement [home, info]

(Note: See plancks for more definitions.)

Quick definitions from WordNet (Planck) ▸ noun:  German physicist whose explanation of blackbody radiation in the context of quantized energy emissions initiated quantum theory (1858-1947) ▸ name:  A surname (very rare: popularity rank in the U.S.: #20612) ▸ Also see plancks ▸ Words similar to planck ▸ Usage examples for planck ▸ Idioms related to planck (New!) ▸ Popular adjectives describing planck ▸ Words that often appear near planck ▸ Rhymes of planck ▸ Invented words related to planck