We found 9 dictionaries that define the word pumping iron:

General (5 matching dictionaries)

1. pumping iron: Merriam-Webster
2. pumping iron: Collins English Dictionary
3. pumping iron: Wiktionary
4. Pumping Iron: Wikipedia, the Free Encyclopedia
5. Pumping Iron: TheFreeDictionary.com

Computing (1 matching dictionary)

6. Pumping Iron: Encyclopedia

Medicine (1 matching dictionary)

7. Pumping Iron: Medical dictionary

Miscellaneous (1 matching dictionary)

8. Pumping Iron: Idioms

Slang (1 matching dictionary)

9. pumping iron: Urban Dictionary

Definitions from Wiktionary (pumping iron) ▸ noun:  (weightlifting, informal) The activity of weightlifting, especially for the purposes of bodybuilding. Similar: lifting, weightlifting, iron, ego lifting, weight training, pump, armlifting, powerbuilding, bodybuilding, exercise, more... ▸ Words similar to pumping iron ▸ Usage examples for pumping iron ▸ Idioms related to pumping iron ▸ Wikipedia articles (New!) ▸ Words that often appear near pumping iron ▸ Rhymes of pumping iron ▸ Invented words related to pumping iron