We found one dictionary that defines the word acorn valves:

General (1 matching dictionary)

1. acorn valves: Collins English Dictionary

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