sluice gate sluice box • sluice valve · · · Info · Definitions · Synonyms · Characters · · sluice gate · · Text Common · · Latin · · Scripts 11 · · Length Definitions · · · (noun) regulator consisting of a valve or gate that controls the rate of water flow through a sluice. Synonyms: sluicegate, sluice valve, floodgate, penstock, head gate, water gate. · · Noun Definition 1 Synonyms · · · sluice · · Synonym 1 sluiceway · · Synonym 2 penstock · · Synonym 3 sluice down · · Synonym 4 flush · · Synonym 5 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075