filamentous

/ˌfɪləˈmɛntəs/
adjective
  1. Consisting of or resembling filaments; having a threadlike or fibrous structure.
    • The scientist studied the filamentous shape of the bacteria under the microscope.
    • The mold grew into a filamentous network on the bread.
    • Certain algae are filamentous, forming long chains of cells.
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