Black eye
Bruising of the eyelid and/or the area around the eye as a result of trauma to the eye. Colloquially known as a shiner.
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- Black henna
Black henna: A tattoo ink and paste consisting of henna with other ingredients added, sometimes including para-phenylenediamine (PPD). Allergic reactions to PPD include a contact dermatitis, itching, blisters, open sores, scarring of the skin . Allergic reactions to PPD may also lead to sensitivity to other products such as hair dye, sun block and some […]
- Black lung disease
Black lung disease: A disease of the lungs that is caused by inhaling coal dust, which in some patients can lead to progressive massive fibrosis of the lungs and severely impaired lung function. Also known as anthracosis and coal miner’s pneumoconiosis.
- Black plague
In 14th-century Europe, the victims of the “black plague” had bleeding below the skin (subcutaneous hemorrhage) which made darkened (“blackened”) their bodies. Black plague can lead to “black death” characterized by gangrene of the fingers, toes, and nose. Black plague is caused by a bacterium (Yersinia pestis) which is transmitted to humans from infected rats […]
- Blackhead
Blackhead: A familiar term for what is medically called an open comedo. A comedo, the primary sign of acne, consists of a widened hair follicle filled with skin debris, bacteria, and oil called sebum. A blackhead has a wide opening to the skin and is capped with a blackened mass of skin debris. In contrast, […]
- Blackwell, Elizabeth
Blackwell, Elizabeth: (1821-1910) The first woman to receive a medical degree from an accredited American college. Blackwell was born in Bristol, England. Her father was a nonconformist, liberal, and abolitionist. In 1832 with her family, she immigrated to Cincinnati, Ohio. Blackwell decided to become a doctor in 1844 after a family friend dying with cancer […]