tran(t)sˈd(y)üsə(r), traan-, -nzˈ- noun
( -s )
Etymology: Latin transduc ere to lead across (from trans- + ducere to lead) + English -er — more at tow
: a device actuated by power from one system and supplying power in the same or any other form to a second system (as a telephone receiver actuated by electric power and supplying acoustic power to the surrounding air or quartz crystals that produce electric power from mechanical power)