We found 11 dictionaries that define the word radioactive material:

General (7 matching dictionaries)

1. radioactive material: Vocabulary.com
2. radioactive material: Dictionary.com
3. Radioactive material: Wikipedia, the Free Encyclopedia
4. radioactive material: Rhymezone
5. radioactive material: FreeDictionary.org
6. radioactive material: Mnemonic Dictionary
7. radioactive material: TheFreeDictionary.com

Computing (1 matching dictionary)

8. radioactive material: Encyclopedia

Medicine (1 matching dictionary)

9. radioactive material: Medical dictionary

Science (2 matching dictionaries)

10. Misunderstood Physics Terms (No longer online)
11. Radioactive material: Physic and Astronomy Glossary

(Note: See radioactive_materials as well.)

Definitions from WordNet (radioactive material) ▸ noun:  material that is radioactive Opposite: non-radioactive, inert, stable Types: uranium, plutonium, cesium, radium, radon, thorium, more... Phrases: Naturally occurring radioactive material, Theft of radioactive material in Tammiku, more... ▸ Words similar to radioactive material ▸ Usage examples for radioactive material ▸ Idioms related to radioactive material ▸ Wikipedia articles (New!) ▸ Words that often appear near radioactive material ▸ Rhymes of radioactive material ▸ Invented words related to radioactive material