eau de cologne /ˌəʊ də kəˈləʊn
/ ▸ noun (plural eaux de cologne /ˌəʊ də kəˈləʊn
/) [mass noun] a light perfume with a characteristic scent, made originally in Cologne, Germany: the drenching smell of eau de cologne.
– ORIGIN early 19th century: French, literally ‘water of Cologne’.