Definitions

1. noun

a narrow band or streak of different color or texture, especially in a rock or a fossilized organism

“The geologist studied the striae on the surface of the rock to determine its age.”

2. noun

stretch marks or scars on the skin, typically caused by rapid growth or weight change

“After her pregnancy, she noticed striae on her abdomen that took time to fade.”

3. noun

a narrow groove or furrow, especially in a rock or a surface

“The striae on the surface of the riverbed were a result of the constant erosion.”