striation

striation

1. an arrangement or pattern of striae

2. another word for stria (sense 1)

---

striation [strī′ā·shən]

(electronics)

A succession of alternately luminous and dark regions sometimes observed in the positive column of a glow-discharge tube near the anode.

(geology)

One of a series of parallel or subparallel scratches, small furrows, or lines on the surface of a rock or rock fragment; usually inscribed by rock fragments embedded at the base of a moving glacier.

(mineralogy)

One of a series of parallel, shallow depressions or narrow bands on the cleavage face of a mineral caused either by growth twinning or oscillatory growth of different crystal faces.