Etymology: stria + -tion
- (countable) (mineralogy) One of a number of parallel grooves and ridges in a rock, formed by repeated twinning 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.
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Full Definition of striation