braceroPronunciation: /brəˈsɪərəʊ, brəˈsɛːrəʊ/Definition of bracero noun (plural braceros) a Mexican labourer allowed into the United States for a limited time as a seasonal agricultural worker. Origin: 1970s: Spanish, literally 'labourer', from brazo 'arm'bracero in other Oxford dictionaries Definition of bracero in the US English dictionary