We found 5 dictionaries that define the word bull necks:

General (4 matching dictionaries)

1. bull necks: Merriam-Webster
2. bull necks: Collins English Dictionary
3. bull necks: Vocabulary.com
4. bull necks: TheFreeDictionary.com

Medicine (1 matching dictionary)

5. bull necks: Merriam-Webster Medical Dictionary

(Note: See bull_neck as well.)

Definitions from WordNet (bull neck) ▸ noun:  a thick short powerful neck ▸ Also see bull_neck ▸ Words similar to bull necks ▸ Usage examples for bull necks ▸ Idioms related to bull necks ▸ Wikipedia articles (New!) ▸ Words that often appear near bull necks ▸ Rhymes of bull necks ▸ Invented words related to bull necks