kohl
US /koʊl/
UK /koʊl/
1.
an ancient eye cosmetic, traditionally made by grinding stibnite (antimony trisulfide) and other ingredients, used in the Middle East, North Africa, and South Asia to darken the eyelids and eyelashes.
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She applied kohl to her eyes, enhancing their natural beauty.
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Ancient Egyptians used kohl not only for beauty but also for protection against the sun's glare and eye infections.