Odontoblast n. : One of the more or less columnar cells on the outer surface of the pulp of a tooth; an odontoplast. They are supposed to be connected with the formation of dentine.

Odontoblast n. : One of the cells which secrete the chitinous teeth of Mollusca.

Example:
I NEED HELP WITH HOMEWORK QUESTION. What tissue produces enamel?

Taxonomy
dentin, odontoblasts, odontoblast process, cells, tooth, tertiary, chemical attack, secretion, dentinal tubules, free encyclopedia, pulpal, junction, dentinal, dentine sensitivity, Couble, ML, Magloire, Bleicher.

Defination from the web:
odontoblast is a biological cell of neural crest origin that is part of the outer surface of the dental pulp, and whose biological function is ... A substractive PCR-based cDNA library from human odontoblast cells: identification of novel genes expressed in tooth forming cells" ...