streaks
n. countable B1 Intermediate US //ˈstɹiks// UK //stɹˈiːks// streaks
n. long, thin marks or lines that are a different color from the area around them. You might see them in someone's hair or on a window that isn't clean.
n. irregular lines, smears, or bands of a different substance or color from the background. Often refers to physical marks on a surface or highlights in hair.
There are streaks of dirt on the car window.
The sunset left beautiful streaks of pink and orange across the evening sky.
The cleaner left visible streaks on the glass, suggesting that the cloth used was either saturated with oil or simply too damp for a polished finish.
Usage
Commonly used in the plural when referring to hair highlights or cleaning marks.