I acutely dated a girl, 6' 5" at the UF Basketball Scholarship thing, that had this, She was hot too, but she had a natural gray streak in her hair! She was worried about it! I in my 20s thought it was nice and hot too! She worried all the time!
Can Anyone Describe Poliosis?
Well i would've just said loss of hair color, but what you said works too. ;p lol.
It's the decrease or absence of melanin (color) in the hair, eyelashes, eyebrows. Causing something called a Mallen Streak, and can be hereditary. I have always wanted one, oh well, nature happens any way. Lol