noun
rebaptism; anabaptism
Christian theological term referring to the practice of baptizing again, especially associated with the Anabaptist movement.
再洗礼派は幼児洗礼を認めず、成人の再洗礼を主張した。
The Anabaptists rejected infant baptism and advocated adult rebaptism.
洗礼 means 'baptism' in general, while 再洗礼 specifically means 'rebaptism' or refers to the Anabaptist movement.
Compound of 再 (re-) and 洗礼 (baptism), a straightforward translation of the Western theological concept.