CAOUTCHOUC Meaning of CAOUTCHOUC in English [ 'kaʊtʃʊk ]■ noun natural rubber that has not been vulcanized.OriginC18: from Fr., from obs. Sp. cauchuc , from Quechua kauchuk . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004