Nicotin. A poisonous principle of tobacco.
Nitrogen. One of the gases in the atmosphere.
Nodes. Hard lumps, principally found upon the bones in syphilis.
Noxious. Injurious.
Nymphomania. Extreme desire for sexual intercourse in the female.
O
Obstetrical. Relating or appertaining to childbirth.
Occlusion. Approximation or closure.
Oedema. See Edema.
Olfactory Nerve. The nerve employed in the sense of smell. Illus. [page 111].