HairFactz Definitions
Some words have more than one meaning. Only those meanings relating to this site will be used.
All Definitions
Mammal
Warm blooded animals, including humans, with a backbone (vertebrate). Usually have some hair or fur, and most females give birth and nourish their young by milk producing mammary (breast) glands. Includes more than 4,000 species.
Medial Region
The portion of the hair between the proximal end (portion of the hair towards the root) and distal end (end of the hair away from the root, towards the tip).
Medulla
The central portion of hair, the core area.
Melanin
Melanin is responsible for skin and hair pigmentation (color). Two forms of melanin, eumelanin and phaeomelanin, determine the color of human hair and animal hair. The amount of this substance accounts for variations in skin color in different people and different races.
Melanocytes
Special cells in the epidermis of the skin which makes melanin.
Melanoma
Potentially fatal form of skin cancer; it can spread rapidly; usually curable if found early; cancer that begins in the melanocytes.
Monilethrix
Monilethrix is a hair disorder that results in periodic nodes or beading along the length of the hair with intervening, tapering constrictions that are not medullated.
Morphology (Adjective - Morphological)
Shape, form, external structure, or arrangement, especially as an object of study or classification.