Noun
1. dense growth of hairs covering the body or parts of it (as on the human head); helps prevent heat loss;
"he combed his hair"2. a very small distance or space;
"they escaped by a hair's-breadth""they lost the election by a whisker"3. filamentous hairlike growth on a plant;
"peach fuzz"4. any of the cylindrical filaments characteristically growing from the epidermis of a mammal;
"there is a hair in my soup"5. cloth woven from horsehair or camelhair; used for upholstery or stiffening in garments
6. a filamentous projection or process on an organism