- a slight or narrow furrow, ridge, stripe, or streak, especially one of a number in parallel arrangement: striae of muscle fiber.
- any of a series of parallel lines or tiny grooves on the surface of a crystal, indicative of the mode of growth.
- a flute on the shaft of a column.
- any of the parallel scratches or grooves on the surface of a rock caused by abrasion resulting from the passage of a glacier, motion on a fault surface, etc
- fine ridges and grooves on the surface of a crystal caused by irregular growth
- a narrow band of colour or a ridge, groove, or similar linear mark, usually occurring in a parallel series
- a narrow channel, such as a flute on the shaft of a column
