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pilus

Definitions of pilus
  1. noun
    any of the cylindrical filaments characteristically growing from the epidermis of a mammal
    synonyms: hair
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    types:
    ingrown hair
    a hair that does not emerge from the follicle but remains embedded in the skin (usually causing inflammation)
    type of:
    filament, filum
    a threadlike structure (as a chainlike series of cells)
  2. noun
    hairlike structure especially on the surface of a cell or microorganism
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    type of:
    hair
    a filamentous projection or process on an organism
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