| hair loss | Hair loss may be associated with aging, hormones (androgens) or genetic predisposition. The pattern of baldness in women is different from that of men. In women there is thinning of the hair all over the scalp, but the frontal hairline is maintained. The hair loss is usually permanent. Treatment has been successful with topical minoxidil in some cases. (13 Nov 1997) |
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| hair preparations | Hair grooming and cleansing aids or other products meant for topical application to hair, usually human. They include sprays, bleaches, conditioners, rinses, shampoos, nutrient lotions, etc. (12 Dec 1998) |
| hair root | The part of a hair that is embedded in the hair follicle, its lower succulent extremity capping the dermal papilla pili in the deep bulbous portion of the follicle. Synonym: radix pili. (05 Mar 2000) |
| hair-salt | <chemical> A variety of native Epsom salt occurring in silky fibres. Origin: A translation of G. Haarsalz. Source: Websters Dictionary (01 Mar 1998) |
| hair shaft | The non-growing portion of a hair which protrudes from the skin, i.e., from the follicle. Synonym: scapus pili. (05 Mar 2000) |
| hair streams | The curved lines along which the hairs are arranged on the head and various parts of the body, especially noticeable in the foetus. Synonym: flumina pilorum. (05 Mar 2000) |
| hair transplant | Autografts of punch biopsies of hair-bearing skin, such as occipital scalp, onto frontal scalp in male pattern alopecia. (05 Mar 2000) |
| hair whorls | A spiral arrangement of the hairs, as at the crown of the head. Synonym: vortices pilorum. (05 Mar 2000) |
| scalp hair | A hair of the head. Synonym: capillus. (05 Mar 2000) |
| pustulate hair | <dermatology> Hair with an enlarged base. (15 Dec 1997) |
| neck of hair follicle | The narrowed part of the hair follicle between the hair bulb and the surface of the skin. Synonym: collum folliculi pili. (05 Mar 2000) |
| stellate hair | Hair split in several strands at the free end. (05 Mar 2000) |
| syndrome, kinky hair | Genetic disorder with fragile twisted ( kinky ) hair and progressive deterioration of the brain. Due to an error in copper transport resulting in copper deficiency. Females are carriers and their sons with the gene have the disease. Also known as menkes syndrome. (12 Dec 1998) |
| tactile hair | The vibrissae or whiskers of animals such as rats and cats which have especially well developed touch endings in the follicular wall. (05 Mar 2000) |
| terminal hair | A mature pigmented, coarse hair. (05 Mar 2000) |