Olfactory Nerves (ol-fak'-to-re). Nerves of smell.
Omentum (o-men'tum). An apron. A fold of the peritoneum connecting the abdominal organs with the stomach.
Ophthalmia (off-thal'-meah). Inflammation of the eye.
Opiates (o'-pe-ats). A preparation of opium.
Optic (op'tik). Pertaining to vision or to the science of optics.
Optic nerve. Nerve of sight.
Orthopnea (or-thop-ne'ah). A condition marked by quick and labored breathing and relief is only had by remaining in an upright position.
Ossific (os-if '-ik). Producing bone.
Ossification (os'if-ik-a'shun). The formation of bone.
Ovary (o'var-e). One of a pair of glandular organs giving rise to ova (eggs).