striation

Plural: striations

Noun

• any of a number of tiny parallel grooves such as: the scratches left by a glacier on rocks or the streaks or ridges in muscle tissue
• a stripe or stripes of contrasting color
• One of a number of parallel grooves and ridges in a rock or rocky deposit, formed by repeated twinning or cleaving of crystals.
• One of a number of parallel scratch lines in rock outcrops, formed when glaciers dragged rocks across the landscape.
• The action of marking with a stria.
• The result of being marked with a stria.
• a parallel series of small grooves, channels, or impressions typically within a metal roof panel used to help reduce the potential for oil-canning.

Synonyms

band, banding, stria