Mesenteric Glands. Glands about the peritoneum which secrete lymph.

Mesentery. Described on [page 49].

Miasm, Miasma. A poisonous, gaseous exhalation from decaying vegetation, or from the earth.

Midwives. Females who attend women at childbirth.

Miscarriage. Defined on [page 682].

Molecule. A minute portion of any body.

Monads. The smallest of all visible animalcules.

Monomania. Insanity on one subject.

Muco-purulent. Composed of mucus and pus.

Mucous Membrane. The thin, web-like lining to the canals and cavities which secretes a fluid by which it is constantly lubricated.