any of the twelve animals representing the twelve Earthly Branches,used to symbolize the year in which a person is born;zodiac 十二～：鼠、牛、虎、兔、龙、蛇、马、羊、猴、鸡、狗、猪the twelve animals:rat,ox,tiger,rabbit,dragon,snake,horse,sheep,monkey,rooster,dog and pig/他属鸡。He was born in the year of the rooster. or:He belongs to the zodiac year of rooster.