Pros″e‐ly‐tism (?), n. [Cf. F. prosélytisme.] 1. The act or practice of proselyting; the making of converts to a religion or a religious sect, or to any opinion, system, or party.
They were possessed of a spirit of proselytism in the most fanatical degree. Burke.
2. Conversion to a religion, system, or party.