We found 22 dictionaries that define the word ionizing radiation:

General (13 matching dictionaries)

1. ionizing radiation: Oxford Learner's Dictionaries
2. ionizing radiation: American Heritage Dictionary of the English Language
3. ionizing radiation: Collins English Dictionary
4. ionizing radiation: Vocabulary.com
5. ionizing radiation: Wordnik
6. ionizing radiation: Wiktionary
7. ionizing radiation: Infoplease Dictionary
8. ionizing radiation: Dictionary.com
9. Ionizing Radiation, Ionizing radiation: Wikipedia, the Free Encyclopedia
10. ionizing radiation: Rhymezone
11. ionizing radiation: FreeDictionary.org
12. ionizing radiation: Mnemonic Dictionary
13. ionizing radiation: TheFreeDictionary.com

Computing (1 matching dictionary)

14. ionizing radiation: Encyclopedia

Medicine (5 matching dictionaries)

15. Dorland's Illustrated Medical Dictionary (No longer online)
16. Medical Dictionary (No longer online)
17. online medical dictionary (No longer online)
18. ionizing radiation: Dictionary of Cancer Terms
19. ionizing radiation: Medical dictionary

Science (2 matching dictionaries)

20. Ionizing radiation, Radiation, ionizing: NRC Glossary of Nuclear Terms --
21. Accelerator Glossary (No longer online)

Tech (1 matching dictionary)

22. DOD Dictionary of Military Terms (No longer online)

(Note: See ionizing_radiations as well.)

Definitions from Wiktionary (ionizing radiation) ▸ noun:  (physics) High-energy radiation that is capable of causing ionization in substances through which it passes; also includes high-energy particles. Similar: radiation, ionization energy, radioactivity, gamma ray, heavy ion, radiation damage, electroionization, radiant energy, charged particle, particle accelerator, more... Phrases: non ionizing radiation, Effects of ionizing radiation in spaceflight, more... ▸ Words similar to ionizing radiation ▸ Usage examples for ionizing radiation ▸ Idioms related to ionizing radiation ▸ Wikipedia articles (New!) ▸ Words that often appear near ionizing radiation ▸ Rhymes of ionizing radiation ▸ Invented words related to ionizing radiation