Co″no‐dont (kō″nō̍‐dŏnt), n. [Gr. κω̑νοσ cone + οδοὔσ, οδὄντοσ, tooth.] (Zoöl.) A peculiar toothlike fossil of many forms, found especially in carboniferous rocks. Such fossils are supposed by some to be the teeth of marsipobranch fishes, but they are probably the jaws of annelids.
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Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.