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Definition of Pilus
1. Noun. Any of the cylindrical filaments characteristically growing from the epidermis of a mammal. "There is a hair in my soup"
Exact synonyms: Hair
Group relationships: Mammal, Mammalian
Generic synonyms: Filament, Filum
Specialized synonyms: Ingrown Hair
Derivative terms: Pilar
Group relationships: Mammal, Mammalian
Generic synonyms: Filament, Filum
Specialized synonyms: Ingrown Hair
Derivative terms: Pilar
2. Noun. Hairlike structure especially on the surface of a cell or microorganism.
Definition of Pilus
1. Noun. A hair. ¹
2. Noun. (microbiology) A hairlike appendage found on the cell surface of many bacteria. ¹
¹ Source: wiktionary.com
Definition of Pilus
1. a hair or hairlike structure [n -LI]
Medical Definition of Pilus
1. Hair like projection from surface of some bacteria. Involved in adhesion to surfaces (may be important in virulence) and specialised sex pili are involved in conjugation with other bacteria. Major constituent is a protein, pilin. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)