noun
brown-dyed hair; hair dyed brown
Refers to hair that has been dyed brown, often associated with fashion trends among young people in Japan.
最近、茶髪の学生が増えている。
Recently, the number of students with brown-dyed hair has been increasing.
彼女は黒髪を茶髪に染めた。
She dyed her black hair brown.
Compound of 茶 (cha, 'brown') and 髪 (hatsu, 'hair'), literally 'brown hair'.