Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «M»:
Micturition: Urination, the act of urinating. The
"micturition" comes from the Latin "micturire"
which has a slightly
different meaning, namely "to want to urinate."...
Micturition syncope: The temporary loss of consciousness upon urinating. (Syncope is the temporary loss of consciousness or, in plain English, fainting). The situations that trigger this reaction are diverse and include having blood drawn, straining while urinating (micturition syncope) or defecati...
Midbrain aqueduct: A canal that communicates between the third and fourth ventricles in a system of four communicating cavities within the
brain that are continuous with the central canal of the spinal cord.
The four ventricles consist of the two lateral
ventricles, the third ventricle and the fo...
Middle ear: There are three sections of the ear.
They are the external ear,
the middle ear, and the inner ear. The middle ear consists
of the ear drum
(the tympanum or tympanic membrane) and, beyond it, a
cavity. This cavity is
connected via a canal (the Eustachian tube) to the pharynx
Middle ear infection, acute
Middle ear infection, acute: Acute middle ear infection, medically called acute otitis media is inflammation of the middle ear. Acute otitis media typically causes fluid in the middle ear accompanied by signs or symptoms of ear infection: a bulging eardrum usually accompanied by pain; or a perfora...
Midget: A very small person (or thing). Midget is a picturesque but somewhat disparaging term. It is the diminutive of midge (the insect), and who wants to be a mini-midge? A more correct term today for a very small person is dwarf or little person.
The notion that a midget is (as some dictionaries ...
Midgut volvulus: See: Volvulus....
Midlife crisis: A period of personal emotional turmoil and coping challenges that some people encounter when they reach middle age, accompanied by a desire for change in their lives, brought on by fears and anxieties about growing older.
The phrase "midlife crisis" was introduced in 1965 by the ps...
Midnight children: Term applied sometimes to children with xeroderma pigmentosum, a genetic disease with such extraordinary sensitivity to sunlight that ordinary sun exposure results in the development of skin cancer at a very early age. Children with xeroderma pigmentosum (XP) can only play outdoor...
Midnight disease: See: Hypergraphia....
Midwife: A person trained to assist a woman during
childbirth. Many midwives also provide prenatal care for pregnant
women, birth education for women and their partners, and care for
mothers and newborn babies after the birth. A midwife may be a man or
a woman. Depending on local law, midwives m...
Midwife assistant: A person who assists a midwife
with prenatal care, childbirth education, delivery, and
post-natal care. Also known as a doula or labor
Midwife, certified: See: Certified midwife....
Midwife, certified nurse
Midwife, certified nurse: See: Certified nurse-midwife....
Midwife, certified professional
Midwife, certified professional: See: Certified professional midwife....