| chlorazol black E | <chemical> An acid dye, used as a fat and general tissue stain, and to stain protozoa in faecal smears or in tissues. Structure: C34H25N9O7S2Na2 (05 Mar 2000) |
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| Sudan black B | A diazo dye, C29H24N6, used as a stain for fats. (05 Mar 2000) |
| death, black | The black plague or the plague. In 14th century Europe, the victims of the black plague had bleeding below the skin (subcutaneous haemorrhage) which made darkened ( blackened ) their bodies. The black death swept recurrently through Europe, killing half its population in the middle of the 14th century. (12 Dec 1998) |
| Fuchs' black spot | An area of pigment proliferation in the macular region in degenerative myopia. (05 Mar 2000) |