trade union

noun
1.
a labor union of craftspeople or workers in related crafts, as distinguished from general workers or a union including all workers in an industry.
Origin
1825-35
Related forms
trade-union, adjective
British Dictionary definitions for trade union

trade union

noun
1.
an association of employees formed to improve their incomes and working conditions by collective bargaining with the employer or employer organizations
Derived Forms
trade unionism, trades unionism, noun
trade unionist, trades unionist, noun