unionizer


un·ion·ize

U0083800 (yo͞on′yə-nīz′)v. un·ion·ized, un·ion·iz·ing, un·ion·iz·es v.tr.1. To organize into a labor union.2. To cause to join a labor union.v.intr. To organize or join a labor union.
un′ion·i·za′tion (-yə-nĭ-zā′shən) n.un′ion·iz′er n.

unionizer

(ˈjuːnjəˌnaɪzə) or

unioniser

n (Industrial Relations & HR Terms) someone who organizes workers into a trade union or trade unions