1. 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

Example Sentences:
'he combed his hair'
'each hair consists of layers of dead keratinized cells'

2. hair, hair's-breadth, hairsbreadth, whisker

a very small distance or space

Example Sentences:
'they escaped by a hair's-breadth'
'they lost the election by a whisker'

• hair's-breadth
• hairsbreadth
• whisker

3. fuzz, hair, tomentum

filamentous hairlike growth on a plant

Example Sentences:
'peach fuzz'

• fuzz
• tomentum

4. hair, pilus

any of the cylindrical filaments characteristically growing from the epidermis of a mammal

Example Sentences:
'there is a hair in my soup'

• pilus

5. hair, haircloth

cloth woven from horsehair or camelhair; used for upholstery or stiffening in garments

• haircloth

6. hair

a filamentous projection or process on an organism