slide valve slide trombone • slide-easy · · · Info · Definitions · Characters · · slide valve · · Text Common · · Latin · · Scripts 11 · · Length 2 · · Syllables Definitions · · · (noun) valve that opens and closes a passageway by sliding over a port. Synonyms: slide valve. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C s latin small letter s U+0073 v latin small letter v U+0076