Adventist

from WordNet (r) 3.0 (2006)

Adventist
    n 1: a member of Christian denomination that expects the
         imminent advent of Christ [syn: {Adventist}, {Second
         Adventist}]

from The Collaborative International Dictionary of English v.0.48

Adventist \Ad"vent*ist\, n.
   One of a religious body, embracing several branches, who look
   for the proximate personal coming of Christ; -- called also
   {Second Adventists}. --Schaff-Herzog Encyc.
   [1913 Webster]