We found 26 dictionaries that define the word nuclear energy:

General (17 matching dictionaries)

1. nuclear energy: Merriam-Webster
2. nuclear energy: Oxford Learner's Dictionaries
3. nuclear energy: American Heritage Dictionary of the English Language
4. nuclear energy: Collins English Dictionary
5. nuclear energy: Vocabulary.com
6. nuclear-energy, nuclear energy: Wordnik
7. nuclear energy: Wiktionary
8. nuclear energy: The Wordsmyth English Dictionary-Thesaurus
9. nuclear energy: Infoplease Dictionary
10. nuclear energy: Dictionary.com
11. Nuclear Energy (sculpture), Nuclear Energy, Nuclear energy: Wikipedia, the Free Encyclopedia
12. nuclear energy: Rhymezone
13. nuclear energy: FreeDictionary.org
14. nuclear energy: Mnemonic Dictionary
15. nuclear energy: TheFreeDictionary.com

Business (1 matching dictionary)

16. nuclear energy: Legal dictionary

Computing (1 matching dictionary)

17. Nuclear energy (disambiguation), nuclear energy: Encyclopedia

Medicine (3 matching dictionaries)

18. Medical Dictionary (No longer online)
19. online medical dictionary (No longer online)
20. nuclear energy: Medical dictionary

Science (1 matching dictionary)

21. Nuclear energy: NRC Glossary of Nuclear Terms --

Tech (3 matching dictionaries)

22. DOD Dictionary of Military Terms (No longer online)
23. Explosives (No longer online)
24. Glossary of Energy Terms (No longer online)

Definitions from Wiktionary (nuclear energy) ▸ noun:  The energy released by a nuclear reaction; either through nuclear fission or nuclear fusion ▸ noun:  Such energy used as a power source. Similar: atomic energy, nuclear weapon, nuclear power, nuclear fission, nuclear binding energy, nuclear fusion, neutron emission, disintegration energy, fusion, nuclear battery, more... Opposite: fossil fuel, renewable energy, non-nuclear energy, traditional energy, conventional energy Phrases: nuclear binding energy, nuclear energy agency, nuclear energy plant, GE Hitachi Nuclear Energy, Nuclear power proposed as renewable energy, more... ▸ Words similar to nuclear energy ▸ Usage examples for nuclear energy ▸ Idioms related to nuclear energy ▸ Wikipedia articles (New!) ▸ Words that often appear near nuclear energy ▸ Rhymes of nuclear energy ▸ Invented words related to nuclear energy