viscus viscousness • vise · · · Info · Definitions · Synonyms · Characters · · viscus · · Text Latin · · Script 6 · · Length Definitions · · · (noun) a main organ that is situated inside the body. Synonyms: internal organ. · · Noun Definition 1 Synonyms · · · internal organ · · Synonym 1 Characters · · c latin small letter c U+0063 i latin small letter i U+0069 s latin small letter s U+0073 u latin small letter u U+0075 v latin small letter v U+0076