Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «B»:
Beals, Rodney K.
Beals, Rodney K.: (1931- ) American orthopaedic surgeon who described a number of congenital malformation syndromes.
After graduating from the University of Oregon Medical School in 1956, Dr. Beals joined the faculty of the Oregon Health Sciences University in 1961 and became head of the Division ...
Beard: The hair that normally grows on the male face after puberty. Testosterone, the most potent of the naturally occurring androgens, causes the development of secondary sex features such as the beard that are characteristic of the adult male.
Although there is normally hair on everyone's face, t...
Beard ringworm: A superficial fungal infection of the skin, affecting the bearded area of the face and neck, with swellings and marked crusting, often with itching, sometimes causing the hair to break off. In the days when men went to the barber daily for a shave, this affliction was called barber's...
Beat, premature: See: Extrasystole....
Beau lines: See: Beau's lines....
Beau's lines: Transverse lines or grooves across the fingernails; transverse depressions in the nail plate. Beau's lines are caused by temporary cessation of cell division in the proximal nail matrix. The condition may be caused by local disease of the nail fold, physical trauma to it, or a systemic...
Beau-Reil cross furrows
Beau-Reil cross furrows: See: Beau's lines....
Beaufort wind scale
Beaufort wind scale: A widely
used wind force scale whih is a simple numerical relationship to wind speed
based on an observation of the effects of the wind. The Beaufort wind scale is of importance in preparations for a tropical storm or hurricane....
Becker muscular dystrophy
Becker muscular dystrophy: A chronic, progressive muscle degeneration disease. A form of muscular dystrophy that is quite similar to Duchenne muscular dystrophy, except that patients with Becker do produce some of the key protein, dystrophin, whereas those with Duchenne do not. Progression of the di...
Beckwith-Wiedemann syndrome: An overgrowth syndrome, whose clinical manifestations typically include macrosomia (large body size), macroglossia (large tongue), omphalocele (exomphalos), organomegaly (enlarged organs), hemihypertrophy (overgrowth of one side of the body), neonatal hypoglycemia (low b...
Bedblocker: See: Bed blocker....
Bed bug: A blood-sucking bug in the Cimex family
that lives hidden in bedding or furniture, coming out at
night to bite their victims....
Bed bugs: Bed bugs are small,
oval, wingless insects of the family Cimicidae, which
have a flat, reddish-brown body and feed on human and animal blood. Bed bugs are
active at night and bite any areas of exposed skin. Bed bugs can infest a home
and hide in crevices or cracks around beds or furnit...
Bed sore: A painful, often reddened area of
degenerating, ulcerated skin caused by pressure and lack of
movement, and worsened by exposure to urine or other
irritating substances on the skin. Untreated bed sores can
become seriously infected or gangrenous. Bed sores are a
major problem for pati...
Bednet: Netting which is hung over the bed to keep out mosquitos and other insects. Bednets are an important form of mosquito control and a major modality for preventing malaria. Bednets can be treated with an insecticide. The insecticide may be long-lasting. If it is not, the net needs regular retr...