We found 9 dictionaries that define the word atomic piles:

General (5 matching dictionaries)

1. atomic piles: Merriam-Webster
2. atomic piles: Collins English Dictionary
3. atomic piles: Vocabulary.com
4. atomic piles: Wiktionary
5. atomic piles: TheFreeDictionary.com

Business (1 matching dictionary)

6. atomic piles: Legal dictionary

Computing (1 matching dictionary)

7. atomic piles: Encyclopedia

Medicine (1 matching dictionary)

8. atomic piles: Medical dictionary

Miscellaneous (1 matching dictionary)

9. atomic piles: Idioms

(Note: See atomic_pile as well.)

Definitions from Wiktionary (atomic pile) ▸ noun:  (nuclear physics) An early nuclear reactor fueled by uranium and moderated with graphite. ▸ Also see atomic_pile ▸ Words similar to atomic piles ▸ Usage examples for atomic piles ▸ Idioms related to atomic piles ▸ Wikipedia articles (New!) ▸ Words that often appear near atomic piles ▸ Rhymes of atomic piles ▸ Invented words related to atomic piles