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Noun: striation  strI'ey-shun
  1. Any of a number of tiny parallel grooves such as: the scratches left by a glacier on rocks or the streaks or ridges in muscle tissue
    - stria
     
  2. A stripe or stripes of contrasting colour
    "chromosomes exhibit characteristic striations";
    - band, banding, stria

Derived forms: striations

Type of: bar, channel, groove, streak, stripe

Encyclopedia: Striation