WordReference Random House Unabridged Dictionary of American English © 2026
o•don•to•blast
(ō don′tə blast′),USA pronunciation n. [Anat.]
o•don′to•blas′tic, adj.
- Anatomy, Dentistryone of a layer of cells lining the pulp cavity of a tooth, from which dentin is formed.
- odonto- + -blast 1875–80