noun (n)

• 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(noun.shape)

  Synonym:
  striation
  

  source: wordnet30
• a stripe or stripes of contrasting color(noun.attribute)

  Synonym:
  band, banding, striation
  

  source: wordnet30
• A minute groove, or channel; a threadlike line, as of color; a narrow structural band or line; a striation; as, the striæ, or groovings, produced on a rock by a glacier passing over it; the striæ on the surface of a shell; a stria of nervous matter in the brain.(noun)

  source: webster1913