The definition of a hair is a fine, thread-like strand that grows on people and animals.(noun)
See hair in Webster's New World College Dictionary
Origin: ME here < OE hær (akin to Ger haar, Frank *harja) & < ? OFr haire, hair shirt < Frank *harja < IE base *er(s)-, to bristle
See hair in American Heritage Dictionary 4
Origin: Middle English her
Origin: , from Old English hǣr.
See hair in Ologies
1. a loss of hair, feathers, or wool.
2. baldness. —alopecic, adj.
an abnormal fear of hair.
the state of being hairy. —crinous, adj.
the use of electrolysis for removing moles, warts, or excess hair. —electrologist, n.
1. a condition of shaggy hairiness.
2. Biology. the state of being covered “with long, stiff hairs. —hirsute, adj.
the state or quality of being covered with small spines or bristles. —hispid, adj.
a condition of excessive hairiness either all over the body or covering a particular part.
people with smooth hair; a division of mankind characterized by people with such hair. Cf. Ulotrichi. —Leiotrichan, adj.
the loss of hair, especially of the eyelashes, as a result of disease.
a surgical instrument for pulling out hairs.
darkness or blackness of eyes, hair, or complexion.
an excessive hairiness; furriness. —pilose, adj.
falling out of the hair.
a condition of splitting of the hair.
1. the act or process of cutting the hair, especially as a religious rite or custom.
2. the shaved part of the head, usually the crown, of a member of a religious order. —tonsorial, adj.
a condition in which the hair grows inward, especially the eyelashes.
Medicine. a loss of hair sensibility.
a condition of extreme brittleness of the hair, often following an illness.
Medicine. the scientific study of hair and its diseases. —trichologist, n.
a condition of the hair in which it is matted or crusted.
an obsession with hair.
any disease of the hair caused by a fungus.
Medicine. any disease of the hair. —trichopathic, adj.
the practice of eating hair.
a mania for pinching off one’s hair.
1. Medicine. any disease or abnormal growth of the hair.
2. a heavy growth of hair.
Medicine. an abnormal desire to pull out one’s own hair, especially by delirious patients. Also called trichologia.
people with woolly, tightly curled, or crisp hair; a division of mankind characterized by people with such hair. Cf. Leiotrichi. —ulotrichous, adj.
the condition or quality of being covered with long, soft hairs, as certain plants, or hairlike appendages, as certain of the membranes of the body. —villous, adj.
a person with light-colored hair and fair complexion. —xanthochroid, xanthochroous, adj.
Learn more about hair