Osseous Tissue. Bony structure.
Ossification, Ossifying. Made into bone by the deposit of phosphate of lime.
Os uteri. Mouth of womb. Illus. [page 206].
Ova. Plural of ovum.
Ovaries. Two ovoid bodies situated either side of the womb. Illus. [page 206].
Ovary. The female organ in which the ovum, or germ-cell, is formed. Illus, [page 206].
Ovulation. The formation of the germ-cell in the ovary and its release from that organ.
Ovum. Defined and illustrated on pages [12] and [13].
Oxygen. The vital gas of the atmospheric air.
Ozæna. Described on [page 474].