The Collaborative International Dictionary of English v.0.48:

disklike \disklike\ adj.
   resembling a disk in shape; circular and having a height
   considerably smaller than the diameter.

   Syn: discoid, discoidal.
        [WordNet 1.5 +PJC]

WordNet (r) 3.0 (2006):

disklike
    adj 1: having a flat circular shape [syn: discoid,
           discoidal, disklike, disclike, disk-shaped,
           disc-shaped]