. | 1. | a slight or narrow furrow, ridge, stripe, or streak, esp. one of a number in parallel arrangement: striae of muscle fiber. |
| 2. | Mineralogy. any of a series of parallel lines or tiny grooves on the surface of a crystal, indicative of the mode of growth. |
| 3. | Architecture. a flute on the shaft of a column. |

stria stri·a (strī'ə)
n. pl. stri·ae (strī'ē)
A thin, narrow groove or channel.
A thin line or band, especially one of several that are parallel or close together.
A thin line, band, stripe, or streak distinguished from the tissue in which it is found; a striation.