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odontoblast
o·don·to·blast [ ō dóntə blàst ] (plural o·don·to·blasts)


noun 
Definition:
 
cell inside tooth that forms dentine: one of a layer of cells lining the pulp cavity of a tooth and taking part in the formation of dentine

o·don·to·blas·tic [ ō dòntə blástik ] adjective
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