streak(redirected from Angioid streaks)
Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.
a. (of lightning) a sudden flash
b. (as modifier): streak lightning
2. Mineralogy the powdery mark made by a mineral when rubbed on a hard or rough surface: its colour is an important distinguishing characteristic
The color of a powdered mineral, obtained by rubbing the mineral on a streak plate.