tan line
Noun
Meaning
tan line (plural tan lines)
the division between skin that has darkened or tanned from exposure to sun and skin that has not been exposed to sun
His sunglasses left a tan line around his eyes.
Noun
tan line (plural tan lines)
the division between skin that has darkened or tanned from exposure to sun and skin that has not been exposed to sun
His sunglasses left a tan line around his eyes.