Black triangle

Black triangle may refer to one of the following:

Black triangle (pharmacology), suffixed to the trade name of a British medicine indicates the drug (or its mode of use) is new
Black triangle (badge), a Nazi concentration camp badge worn by inmates deemed "asocial"
Black triangle symbol of lesbian or feminist pride and solidarity.
Black triangle (UFO), a type of UFO sighting; the UFO being like a black triangle
Black triangle, in Unicode Geometric Shapes (e.g.: ▼ ◀ ◣) special code for printing a variety of shapes including various black triangles
The nickname given to the triangular area south of Montreal worst affected by a long term blackout during the North American ice storm of 1998
The nickname for one of Europe's most polluted areas- the area where Germany, Poland and the Czech Republic meet. [1]

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