OSTENTATOR
Os"ten*ta`tor, n. Etym: [L.]
Defn: One fond of display; a boaster. Sherwood.
OSTENTIVE
Os*ten"tive, a.
Defn: Ostentatious. [Obs.]
OSTENTOUS
Os*ten"tous, a.
Defn: Ostentatious. [Obs.] Feltham.
OSTEO-
Os"te*o-.
Defn: A combining form of Gr. a bone.
OSTEOBLAST
Os"te*o*blast, n. Etym: [Osteo- + -blast.] (Anat.)
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.