a. [ L. bifidus; bis twice + root of findere to cleave or split: cf. F. bifide. ] Cleft to the middle or slightly beyond the middle; opening with a cleft; divided by a linear sinus, with straight margins. [ 1913 Webster ]
a. [ L. bifidatus. ] See Bifid. [ 1913 Webster ]
‖ (Med.) [ L., cleft spine. ] A congenital malformation in which the spinal column is cleft at its lower portion, and the membranes of the spinal cord project as an elastic swelling from the gap thus formed. [ 1913 Webster ]