Alb-: Prefix from the Latin “albus” meaning “white.” As in albino and albinism. The term “albino” was first applied by the Portuguese to “white” people they encountered in West Africa. Those “white” people probably had partial or complete albinism, an inherited lack of pigment in the skin, hair, and eyes.
Albinism: A group of genetic disorders in which there is partial or total lack of the pigment melanin in the eyes, skin, and hair. See also: Albinism, oculocutaneous; Hermansky-Pudlak syndrome.
- Albinism and hemorrhagic diathesis
Albinism with hemorrhagic diathesis and pigmented reticuloendothelial cells: See: Hermansky-Pudlak syndrome.
- Albinism, oculocutaneous
Albinism, oculocutaneous: An hereditary disorder characterized by deficiency of the pigment melanin in the eyes, skin and hair. The lack of eye pigment causes photophobia (sensitivity to light), nystagmus, and decreased visual acuity. Oculocutaneous albinism is conventionally classified as to whether it is tyrosinase-negative or tyrosinase-positive. In the tyrosinase-negative class, there is absence of the […]
Albino: A person with albinism. The term was first applied by the Portuguese to people in West Africa, who may have had partial or complete albinism.
Albuginea: Tough white fibrous tissue. The tunica albuginea of the testis, for example, is the layer of dense whitish inelastic tissue that surrounds the testis.