Brontophobia: An abnormal and persistent fear of thunder that causes undue anxiety even though sufferers realize that thunder itself poses no threat to them. When outdoors during a thunderstorm, they may suffer excessive anxiety. When indoors, they may hide under beds or desks, behind sofas, or in closets.
“Brontophobia” is derived from the Greek “bronte” (thunder) and “phobos” (fear). This same Greek word has given us the English word “brontometer,” an instrument for recording the activity of thunderstorms.
A related term: Astraphobia, fear of thunderstorms.
- Brown fat
Brown fat: Brown adipose tissue, a rapid source of energy for infants in whom it forms about 5% of their body weight. It is brown because the cells in it are packed full of small cellular organs called mitochondria, which are energy factories, and it has a rich supply of blood vessels. Brown fat was […]
- Bross, Irwin DJ
Bross, Irwin DJ: (1921-2004) American public-health advocate and biostatistician who initiated and designed methods for analysing vehicle crash injury cause and effect, and conducted clinical studies of the relation between low-level radiation exposure and cancer.
- Brown syndrome
Brown syndrome: An ophthalmology (eye) problem. Brown syndrome is an abnormality that is present at birth (congenitally) and is characterized by an inability to elevate the eyeball when trying to move the eyeball to the outside. Brown syndrome can also occur because of other conditions which affect the normal function of the eye muscles. The […]
- Brown, Louise
Brown, Louise: The world’s first test-tube baby, conceived by in vitro fertilization and born on July 25, 1978.
- Brown, Michael Stuart
Brown, Michael Stuart: American physician, biochemist and molecular geneticist (1941-) who shared the Nobel Prize for research on cholesterol. Brown earned his B.A. from the University of Pennsylvania in 1962, and received his M.D. in 1966. After an internship at the Massachusetts General Hospital in Boston (1966-68), he came to the National Institutes of Health […]