Striations

Science / Geology / Striations: Scratches or grooves on a rock or sediment surface caused by abrasive action of objects being transported above it by ice, water or wind.

Glacial Striations

Science / Geology / Glacial Striations: Grooves and scratches on a bedrock surface that were produced by the movement of a glacier. The orientation of the striations gives evidence to the direction of glacial movement. MORE

Smooth Muscle

Science / Biology / Smooth Muscle: Muscle that lacks striations; found around circulatory system vessels and in the walls of such organs as the stomach, intestines, and bladder. Involuntary, not striated cells that control autonomic fu MORE

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