poly·spon·dyl·ic \| ̷ ̷ ̷ ̷|spän|dilik\adjective Etymology:poly- + spondylic : of, relating to, or having a vertebral column (as in the chimaeroid fishes) in which the calcified portion has the form of numerous slender rings surrounding the notochord • poly·spon·dy·lous\-ndələs\adjective • poly·spon·dy·ly\-lē\noun-es