(AFLCIO), American federation of autonomous labour unions formed in 1955 by the merger of the AFL (founded 1886), which was originally based on the principle of organizing workers in craft unions, and the CIO (founded 1935), which organized workers by industries.
AMERICAN FEDERATION OF LABORCONGRESS OF INDUSTRIAL ORGAN
Meaning of AMERICAN FEDERATION OF LABORCONGRESS OF INDUSTRIAL ORGAN in English
Britannica English vocabulary. Английский словарь Британика. 2012