The Collaborative International Dictionary
Manuductor
Manuductor \Man`u*duc"tor\, n. [L. manus the hand + ductor a
leader, ducere to lead: cf. F. manuducteur.] (Mus.)
A conductor; an officer in the ancient church who gave the
signal for the choir to sing, and who beat time with the
hand, and regulated the music.
--Moore (Encyc. of Music.)
Wiktionary
manuductor
n. (context Catholicism English) The chief novice in an order.