Pronunciation: (strī'u),[key] —n., —pl.stri•aePronunciation: (strī'ē).[key] 1. a slight or narrow furrow, ridge, stripe, or streak, esp. one of a number in parallel arrangement: striae of muscle fiber. 2. Mineral.any of a series of parallel lines or tiny grooves on the surface of a crystal, indicative of the mode of growth.
3. Archit.a flute on the shaft of a column.