We found 5 dictionaries that define the word gamma radiations:

General (4 matching dictionaries)

1. gamma radiations: Merriam-Webster
2. gamma radiations: Collins English Dictionary
3. gamma radiations: Vocabulary.com
4. gamma radiations: Wiktionary

Medicine (1 matching dictionary)

5. gamma radiations: Merriam-Webster Medical Dictionary

(Note: See gamma_radiation as well.)

Definitions from Wiktionary (gamma radiation) ▸ noun:  (physics) electromagnetic radiation consisting of gamma rays ▸ Also see gamma_radiation ▸ Words similar to gamma radiations ▸ Usage examples for gamma radiations ▸ Idioms related to gamma radiations ▸ Wikipedia articles (New!) ▸ Words that often appear near gamma radiations ▸ Rhymes of gamma radiations ▸ Invented words related to gamma radiations