We found 7 dictionaries that define the word flap valve:

General (6 matching dictionaries)

1. flap valve: Merriam-Webster
2. flap valve: Oxford Learner's Dictionaries
3. flap valve: Wordnik
4. Flap valve, flap valve: Dictionary.com
5. flap valve: FreeDictionary.org
6. Flap valve: TheFreeDictionary.com

Computing (1 matching dictionary)

7. flap valve: Encyclopedia

▸ Words similar to flap valve ▸ Usage examples for flap valve ▸ Idioms related to flap valve ▸ Wikipedia articles (New!) ▸ Words that often appear near flap valve ▸ Rhymes of flap valve ▸ Invented words related to flap valve