hair hair /ˈhɛr/

noun

1. () A covering for the body (or parts of it) consisting of a dense growth of threadlike structures (as on the human head); helps to prevent heat loss  ( hair )
   a covering for the body (or parts of it) consisting of a dense growth of threadlike structures (as on the human head); helps to prevent heat loss
    He combed his hair
   he combed his hair
    Each hair consists of layers of dead keratinized cells
   each hair consists of layers of dead keratinized cells
   
   
2. A filamentous projection or process on an organism  ( hair )
   a filamentous projection or process on an organism
    The caterpillar's body was covered in tiny, bristle-like hairs.
   The caterpillar's body was covered in tiny, bristle-like hairs.
   
   
3. Cloth woven from horsehair or camelhair; used for upholstery or stiffening in garments  ( hair , haircloth )
   cloth woven from horsehair or camelhair; used for upholstery or stiffening in garments
   
4. Any of the cylindrical filaments characteristically growing from the epidermis of a mammal  ( hair , pilus )
   any of the cylindrical filaments characteristically growing from the epidermis of a mammal
    There is a hair in my soup
   there is a hair in my soup
   
   
5. Filamentous hairlike growth on a plant  ( hair , tomentum , fuzz )
   filamentous hairlike growth on a plant
    Peach fuzz
   peach fuzz
   
6. A very small distance or space  ( hair , hair's-breadth , hairsbreadth , whisker , hairbreadth )
   a very small distance or space
    They escaped by a hair's-breadth
   they escaped by a hair's-breadth
    They lost the election by a whisker
   they lost the election by a whisker