[ ˌkrɪstə'dɛlfɪən ]
■ noun a member of a Christian sect claiming to return to the beliefs and practices of the earliest disciples and expecting a second coming of Christ.
■ adjective relating to the ~s.
Origin
from late Gk Khristadelphos 'in brotherhood with Christ' (from Gk Khristos 'Christ' + adelphos 'brother') + -ian .