tricho-, trich-, -tricha, -trichia, -trichan, -trichic, -trichosis, -trichous, -thrix, -trichum, -trichy +

Any disease of the hair or its abnormal growth or development in an abnormal place.

Any abnormal coloring, or lack of coloring, of the hair.

A fungous infection of the hair shaft.

a congenital condition in which the hair follicle is plugged with keratin and fine, lanugo hairs.

Infestation with the intestinal parasite Trichostrongylus; a rare disease in the United States.

A genus of nematode worms of the family Trichostrongylidae.

These worms are of economic importance because of the damage they cause to domestic animals and birds.

The order or arrangement of hair.

Arranging or putting hair in some kind of order.

A genus of mold fungi causing disease of the hair.

1. An abnormality of the hair shaft in which the fine, brittle hairs show alternating light and dark zones when viewed under a polarizing microscope.

The sulfur content of the hair is greatly reduced and mental retardation has frequently been a related feature.

2. Congenital fragile hair with multiple fractures resulting from low sulfur-containing amino acid, cysteine, content of the hair, mental impairment, and short stature.

1. A compulsive desire to pull out one's own hair.
2. Pleasure, gratification, or relief when pulling out one's hair.
3. The unnatural and irresistible urge to pullout one's own hair.

It is estimated that eight million Americans are affected by this compulsive action.

Sites of hair pulling may include any region of the body in which hair may grow with the most common areas being the scalp, eyebrows, and eyelashes. Stressful circumstances frequently cause some increased hair-pulling behavior, but increased hair pulling also occurs in states of relaxation and distraction; such as, when watching television or reading a book.

Trichotillomania (TTM) or "trich" is an impulse control disorder characterized by the repeated urge to pull out scalp hair, eyelashes, beard hair, nose hair, pubic hair, eyebrows or other body hair. It may be distantly related to obsessive-compulsive disorder, with which it shares both similarities and differences.

Division into three parts, especially (in theology) the division of human nature into body (soma), soul (psyche), and spirit (pneuma).

An antibody or cytotoxin that destroys ciliated epithelial cells.

Nutrition of the hair.

The property of some crystals of exhibiting different colors in three different directions when viewed by transmitted light.