black-ice

black ice

noun
1.
a thin sheet of ice, as on a road surface, usually caused by freezing mist and creating hazardous driving conditions.
2.
Oceanography. sea ice that is clear enough to show the color of the water underneath.

Origin:
1820–30, Americanism

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
black ice
 
n
a thin transparent layer of new ice on a road or similar surface

Collins English Dictionary - Complete & Unabridged 10th Edition
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