a labor union composed only of people in the same craft.
Origin of craft union
First recorded in 1920–25
Related formscraft unionist, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for craft union
a labour organization membership of which is restricted to workers in a specified trade or craftCompare industrial union
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012