Illustration of hair
- 1 shaft
- 2 sebaceous gland
- 3 epidermis
- 4 dermis
- 5 hair follicle
- 6 bulb
- 7 papilla
often attributive
1
2
3
a
: a minute distance or amount
won by a hair
b
: a precise degree
aligned to a hair
5
: a filamentous structure that resembles hair
leaf hair
Examples of hair in a Sentence
He plucked a hair from his arm.
There are dog hairs all over my coat.
The hair on her arms is blond.
He has a lot of hair on his chest.
He got his hair cut last week.
He has a thick head of hair.
a balding man who is losing his hair
He won the race by a hair.
He was a hair off on the count.
Recent Examples on the Web
Lauren's house was wiped clean of all physical evidence, right down to stray hairs in her drain, which is really salt in the wound.
—
Sara Netzley, EW.com, 25 Feb. 2025
One of his first moves was a dress code straight out of a military handbook: no beards, no long hair, mustaches allowed but neatly trimmed.
—Marc Edelman, Forbes, 25 Feb. 2025
The replica dust was put through a specialized grinder to create grains equal in size to those on Mars with a thickness equivalent to 1/100th of a human hair.
—Ashley Strickland, CNN, 25 Feb. 2025
Campbell’s glam for the runway show featured her black hair worn down and straight with a middle part.
—Julia Teti, WWD, 25 Feb. 2025
See All Example Sentences for hair
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Sara Netzley, EW.com, 25 Feb. 2025
One of his first moves was a dress code straight out of a military handbook: no beards, no long hair, mustaches allowed but neatly trimmed.
—Marc Edelman, Forbes, 25 Feb. 2025
The replica dust was put through a specialized grinder to create grains equal in size to those on Mars with a thickness equivalent to 1/100th of a human hair.
—Ashley Strickland, CNN, 25 Feb. 2025
Campbell’s glam for the runway show featured her black hair worn down and straight with a middle part.
—Julia Teti, WWD, 25 Feb. 2025
See All Example Sentences for hair
Cite this Entry
“Hair.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hair. Accessed 3 Mar. 2025.
Copy CitationKids Definition
hair
noun
ˈha(ə)r 
ˈhe(ə)r
1
a
: a slender threadlike growth from the skin of an animal
especially
: one that usually contains coloring and forms part of the characteristic coat of a mammal
b
: a covering or growth of hairs of an animal or a body part
2
: a tiny distance or amount
won by a hair
3
: a threadlike structure that resembles hair
leaf hairs
Medical Definition
hair
nounoften attributive
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
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