striation englannista kaikille kielille - Sanakirja.org (englanti-*)

(countable, mineralogy) One of a number of parallel grooves and ridges in a rock or rocky deposit, formed by repeated twinning or cleaving of crystals.
(countable, geomorphology) One of a number of parallel scratch lines in rock outcrops, formed when glaciers dragged rocks across the landscape.
The action of marking with a stria.
The result of being marked with a stria.
(roofing) a parallel series of small grooves, channels, or impressions typically within a metal roof panel used to help reduce the potential for oil-canning.

The energy raised the temperature of the snow a couple of degrees, and the friction carved striations high in the icy sides of the canyon walls.

Monikko