clean room clean out • cleansable · · · Info · Definitions · Synonyms · Characters · · clean room · · Text Common · · Latin · · Scripts 10 · · Length 2 · · Syllables Definitions · · · (noun) a room that is virtually free of dust or bacteria; used in laboratory work and in assembly or repair of precision equipment. Synonyms: clean room, white room. · · Noun Definition 1 Synonyms · · · white room · · Synonym 1 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 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072