dittany in American English
a creeping, woolly herb (Origanum dictamnus) of the mint family, native to Crete
noun: a Cretan plant, Origanum dictamnus, of the mint family, having spikes of purple flowers and formerly believed to have medicinal qualities
dittany in British English
noun: an aromatic Cretan plant, Origanum dictamnus, with pink drooping flowers: formerly credited with great medicinal properties: family Lamiaceae (labiates)