dissenter

dissenter
n
(a) person who dissents 持异议者; 不同意者; 反对者.
(b) Dissenter Protestant who refuses to accept the doctrines of the Church of England （不赞成英国国教教义的）新教徒
    Presbyterians and other Dissenters 长老会教友及其他新教徒.

牛津英汉双解词典