overactivity overactiveness • overacute · · · Info · Definitions · Characters · · overactivity · · Text Latin · · Script 12 · · Length 6 · · Syllables Definitions · · · (noun) excessive activity. Example: "Overactivity of the sebaceous glands causes the skin to become oily." · · Noun Definition 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 v latin small letter v U+0076 y latin small letter y U+0079