Propagator | Webster's Dictionary of the English Language

propagator
prō̆pāgātor, ōris, m. [1. propago], a propagator; trop., an enlarger , extender (class.): provin...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
propagator
prōpāgātor ōris, m 1 propago, an extender, one who lengthens : provinciae, i. e. of command in a ...

An Elementary Latin Dictionary