The Collaborative International Dictionary of English v.0.48:

Aflicker \A*flick"er\ ([.a]*fl[i^]k"[~e]r), adv. & a. [Pref. a-
   + flicker.]
   In a flickering state.
   [1913 Webster]

WordNet (r) 3.0 (2006):

aflicker
    adj 1: shining unsteadily [syn: flickering, aflicker(p)]