Category: M
-
Mercurial stomatitis
A form of stomatitis seen in those exposed to elemental mercury or mercury vapors. Mouth inflammation caused by the excessive absorption of mercury.
-
Membranous stomatitis
Stomatitis accompanied by the formation of a false or adventitious membrane. Mouth inflammation accompanied by the presence of an abnormal membrane.
-
Major aphthous stomatitis
A disease in which large recurring or migrating painful ulcers appear within the oral cavity (on the gingiva and soft palate) and sometimes on the lips.
-
Mechanical stimulus
A stimulus produced by a physical change such as contact with objects or changes in pressure.
-
Male sterility
The inability of a male either to produce sperm or to produce viable sperm, thereby prohibiting fertilization of the ovum. This may result from congenital factors, such as cryptorchidism or maldevelopment of the testicular ducts or testis, or acquired factors, such as radiation to, or surgical removal of, the testes.
-
Metachromatic stain
A stain which causes cells or tissues to take on a color different from the stain itself.
-
Milk spot
A dense area of macrophages in the omentum.
-
Mclntire’s splint
A splint shaped like a double inclined plane, used as a posterior splint for the leg and thigh.
-
Mandibular spine
The small, tongue shaped protuberance on the medial aspect of the mandibular ramus near the mandibular foramen, to which the sphenomandibular ligament is attached.
-
Mirror speech
Speech characterized by reversing the order of syllables of a word. Speech where the syllables are pronounced in reverse order.