We found 12 dictionaries that define the word heart valves:

General (4 matching dictionaries)

1. heart valves: Vocabulary.com
2. heart valves: Wiktionary
3. Heart valves: Wikipedia, the Free Encyclopedia
4. Heart valves: TheFreeDictionary.com

Business (1 matching dictionary)

5. Heart valves: Legal dictionary

Computing (1 matching dictionary)

6. Heart valves: Encyclopedia

Medicine (6 matching dictionaries)

7. Dorland's Illustrated Medical Dictionary (No longer online)
8. Heart valves, Valves, heart: MedTerms.com Medical Dictionary
9. Medical Dictionary (No longer online)
10. online medical dictionary (No longer online)
11. Heart valves: Medical dictionary
12. Heart valves, Valves, heart: Drug Medical Dictionary

(Note: See heart_valve as well.)

Definitions from Wiktionary (heart valve) ▸ noun:  (anatomy, cardiology) Any of the valves in the heart which prevent blood from moving in the wrong direction. ▸ Also see heart_valve Phrases: fenestration heart valves, more... ▸ Words similar to heart valves ▸ Usage examples for heart valves ▸ Idioms related to heart valves ▸ Wikipedia articles (New!) ▸ Words that often appear near heart valves ▸ Rhymes of heart valves ▸ Invented words related to heart valves