Dictionary

hair

noun, often attributive \ˈher\

: a thin threadlike growth from the skin of a person or animal

: a covering or growth of hairs

: the covering of hairs on a person's head

Full Definition of HAIR

1
a :  a slender threadlike outgrowth of the epidermis of an animal; especially :  one of the usually pigmented filaments that form the characteristic coat of a mammal
b :  the hairy covering of an animal or a body part; especially :  the coating of hairs on a human head
2
:  haircloth
3
a :  a minute distance or amount <won by a hair>
b :  a precise degree <aligned to a hair>
4
obsolete :  nature, character
5
:  a filamentous structure that resembles hair <leaf hair>
hair·less adjective
hair·less·ness noun
hair·like \-ˌlīk\ adjective
in one's hair
:  persistently and annoyingly in one's presence <can't work with you in my hair all day>
out of one's hair
:  out of one's way :  not in one's hair <keep the children out of his hair for a while>

Examples of HAIR

  1. He plucked a hair from his arm.
  2. There are dog hairs all over my coat.
  3. The hair on her arms is blond.
  4. He has a lot of hair on his chest.
  5. He got his hair cut last week.
  6. He has a thick head of hair.
  7. a balding man who is losing his hair
  8. He won the race by a hair.
  9. He was a hair off on the count.

Illustration of HAIR

Origin of HAIR

Middle English, from Old English ̄r; akin to Old High German hār hair
First Known Use: before 12th century

Other Anatomy Terms

bilateral symmetry, carotid, cartilage, dorsal, entrails, prehensile, renal, solar plexus, supine, thoracic, ventral
HAIRLIKE Defined for Kids

hair

noun \ˈher\

Definition of HAIR for Kids

1
:  a threadlike growth from the skin of a person or animal <She pulled out a hair.>
2
:  a covering or growth of hairs <I got my hair cut.>
3
:  something (as a growth on a leaf) like an animal hair
4
:  a very small distance or amount <I won by a hair.>
haired \ˈherd\ adjective <a long-haired dog>
hair·less \ˈher-ləs\ adjective
hair·like \-ˌlīk\ adjective
Medical Dictionary

hair

noun , often attrib \ˈha(ə)r, ˈhe(ə)r\

Medical Definition of HAIR

1
:  a slender threadlike outgrowth of the epidermis of an animal; especially :  one of the usually pigmented filaments that form the characteristic coat of a mammal
2
:  the hairy covering of an animal or a body part; especially :  the coating of hairs on a human head
hair·like \-ˌlīk\ adjective

Illustration of HAIR

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