Osteoblast
Pronunciation : Os"te*o*blast
Part of Speech : n.
Etymology : [Osteo- + -blast.] (Anat.)
Definition : Defn: One of the protoplasmic cells which occur in the osteogenetic layer of the periosteum, and from or around which the matrix of the bone is developed; an osteoplast.
Source : Webster's Unabridged Dictionary, 1913