Bi-
Bi-: Prefix indicating two, as in biceps (a muscle with two heads) or bicuspid (having two flaps or cusps).
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- Black Death
Black Death: The Medieval black plague that ravaged Europe and killed a third of its population. It was due to the plague which is caused by a bacterium (Yersinia pestis) transmitted to humans from infected rats by the oriental rat flea. In 14th-century Europe, the victims of the Black Death had bleeding below the skin […]
- 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.
- 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 […]