tran·sub·stan·ti·a·tion
noun/ˌtrænsəbˌstænʃiˈeɪʃn/
/ˌtrænsəbˌstænʃiˈeɪʃn/
[uncountable]- the belief that the bread and wine of the Communion service become the actual body and blood of Jesus Christ after they have been blessed, even though they still look like bread and wine
变体论（指面饼和葡萄酒经祝圣后变成基督的体血，只留下饼酒的外形） Word Originlate Middle English: from medieval Latin transsubstantio (see trans-, substance).