noun
gray-haired head; silver-haired head
Refers to a head of hair that has turned gray or silver, typically from age. Can be used descriptively or affectionately.
祖父はすっかり白髪頭になった。
My grandfather has become completely gray-haired.
電車で白髪頭の紳士を見かけた。
I saw a silver-haired gentleman on the train.