We found 13 dictionaries that define the word mastectomies:

General (10 matching dictionaries)

1. mastectomies: Merriam-Webster
2. mastectomies: Oxford Learner's Dictionaries
3. mastectomies: Collins English Dictionary
4. mastectomies: Vocabulary.com
5. Mastectomies, mastectomies: Wordnik
6. mastectomies: Cambridge Advanced Learner's Dictionary
7. mastectomies: Wiktionary
8. mastectomies: Dictionary.com
9. mastectomies: Cambridge Essential American English Dictionary
10. mastectomies: TheFreeDictionary.com

Computing (1 matching dictionary)

11. mastectomies: Encyclopedia

Medicine (2 matching dictionaries)

12. mastectomies: Merriam-Webster Medical Dictionary
13. mastectomies: Medical dictionary

(Note: See mastectomy as well.)

Definitions from Wiktionary (mastectomy) ▸ noun:  The surgical procedure to remove all or part of a breast and sometimes nearby tissues. ▸ Also see mastectomy Opposite: breast augmentation, breast implants ▸ Words similar to mastectomies ▸ Usage examples for mastectomies ▸ Idioms related to mastectomies ▸ Wikipedia articles (New!) ▸ Popular adjectives describing mastectomies ▸ Words that often appear near mastectomies ▸ Rhymes of mastectomies ▸ Invented words related to mastectomies