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

An agent that promotes or stimulates the growth of hair: At the hairdresser's, Jeff asked if there was a trichogen he could use to make his hair grow thicker, especially in the bald spots.

Regarding the help or boost of the growth of hair; At the drug store, Mr. Simmons found a trichogenous substance that would promote his hair to grow thicker.

A hairy condition of the tongue which is a benign side effect of some antibiotics: One symptom of trichoglossia is a dark overgrowth of the papillae of the tongue.

A trichoglossia is a lengthening of the filiform papillae, producing an appearance as if the tongue were covered with hair.

The production of "goose flesh" when stroking the skin; "pilomotor" or moving hairs: In Grace's book on medicine, she came across the term trichographism which was descriptive of the formation of goose bumps or of the pilomotor reflex.

In botany and mycology: A hairlike terminal process forming the receptive part of the female reproductive structure: The trichogyne is found in certain fungi, algae, lichens, and red seaweeds.

Pertaining to the slender, hair-like cell that obtains the fertilizing elements, or antherozoids: Such trichogynic cells are present in female red seaweeds, lichens and fungi.

A substance of the nature of keratohyalin (colorless-translucent protein) found in the developing inner root sheath of the hair follicle: The trichohyalin is the hyaline (clear, translucent, and contains no fibers or granular material) of the hair.

Hairlike: similar to or like hair: In her biology book, Jenny read about trichoid hairs present in the labium that also had thirty sensilla and sensilla chaetica.

An abnormal desire to break off one's hair or beard with the fingernails: Trichokryptomania is a psychogenic disorder in which a person is compelled to break or pull out one's hair, ofen combined with the obsessive urge to manipulate it.

1. A concretion on the hair; the lesion of piedra: In the condition of tricholith, piedra is either of two diseases resulting from fungal infection of the hair shafts. Black piedra occurs mainly in and on the hairs of the scalp and is caused by piedraia hortae; white piedra occurs in and on the hairs of the scalp, beard, moustache and genital areas and is caused by trichosporon beigelii.

2. A calcified hair ball within the stomach or intestines: A tricholith is a calcified concretion that is like a hard, stone-like object that develops from swallowed hair.

1. A nervous habit of plucking at one's hair: Trichologia might develop into the pulling of one's hair as in a rage or delirium.
2. The scientific study of hair: Trichologia includes the research of the structure, function, and diseases of hair, wool or fur.

Pertaining to the study of hair: Sally wanted to get some trichological information on the internet because she wanted to study trichology at the local junior college after completing school and getting her diploma.

A specialist in the study of hair structure and diseases: Sally's father was a trichologist, an expert in the area of ailments and functions of hair, wool, and fur.

By extension, a hairdresser or hair stylist might also be a trichologist

The study or science of hair: Trichology deals with the anatomy, growth,and diseases of the hair.

Trichology also includes its care and treatment.

1. Rare, ingrown eyelash; trichiasis: Trichoma os a disorder of the eye, in which the eyelashes, being turned in upon the eyeball, produce constant irritation by the motion of the lids.
2. Matted, verminous, encrusted state of the hair: When Mary was at the dermatologist's, she was informed that she had a condition of trichoma causing her hair to be twisted, tangled, and knotted.