mulberry UK /ˈmʌlbəɹi/US /ˈmʌlˌbɛɹi/noun 3adjective 1forms 3 noun3 •Any of several trees, of the genus Morus, having edible fruits.Beyond the south end of the lake, the route lies across the plain of Lombardy, where the mulberry trees are evidence of the silk industry. — 1951 •The fruit of this tree. •A dark purple colour tinted with red. adjective1 •Of a dark purple color tinted with red. formsmulberries · more mulberry · most mulberry