city in Moscow oblast (province), western Russia, east of Moscow city, along the Klyazma River. Formed in 1917 through the amalgamation of several industrial villages, Orekhovo-Zuyevo is now one of the largest textile-manufacturing cities of Russia, specializing in cotton. Chemicals and engineering are also important. Peat is extracted in the vicinity. Pop. (1991 est.) 136,800
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