We found 19 dictionaries that define the word massed:

General (16 matching dictionaries)

1. massed: Longman Dictionary of Contemporary English
2. massed: Merriam-Webster
3. massed: Collins English Dictionary
4. massed: Vocabulary.com
5. Massed, massed: Wordnik
6. massed: Cambridge Advanced Learner's Dictionary
7. massed: Wiktionary
8. Massed, massed: Dictionary.com
9. massed: Cambridge Essential American English Dictionary
10. Massed: Online Plain Text English Dictionary
11. massed: Rhymezone
12. Massed: AllWords.com Multi-Lingual Dictionary
13. massed: FreeDictionary.org
14. massed: TheFreeDictionary.com

Business (1 matching dictionary)

15. massed: Legal dictionary

Computing (1 matching dictionary)

16. massed: Encyclopedia

Medicine (1 matching dictionary)

17. massed: Medical dictionary

(Note: See mass as well.)

Definitions from WordNet ( ) ▸ adjective:  brought together into a group or crowd ▸ name:  A surname (very rare: popularity rank in the U.S.: #70294) Opposite: dispersed, scattered, spread out Types: dense, clustered, compact, crowded, thronged, more... Phrases: massed practice, massed fire, more... Colors:     crimson,     scarlet,     burgundy,     maroon,     ruby, more... ▸ Words similar to massed ▸ Usage examples for massed ▸ Idioms related to massed ▸ Wikipedia articles (New!) ▸ Popular nouns described by massed ▸ Words that often appear near massed ▸ Rhymes of massed ▸ Invented words related to massed