We found 3 dictionaries that define the word non-return valve:

General (2 matching dictionaries)

1. Non-return valve: Wikipedia, the Free Encyclopedia
2. non-return valve: Wiktionary

Computing (1 matching dictionary)

3. Non-return valve: Encyclopedia

Definitions from Wiktionary (non-return valve) ▸ noun:  Synonym of check valve ▸ Words similar to non-return valve ▸ Usage examples for non-return valve ▸ Idioms related to non-return valve ▸ Wikipedia articles (New!) ▸ Words that often appear near non-return valve ▸ Rhymes of non-return valve ▸ Invented words related to non-return valve