Which term refers to a form of leukoderma?

The term that refers to a form of leukoderma is albinism. Leukoderma describes skin that has lost its pigment, leading to patches of lighter skin. Albinism specifically is a genetic condition characterized by a total or partial absence of melanin, the pigment that gives skin, hair, and eyes their color. This condition directly results in the clinical presentation of lighter skin areas, which aligns with the definition of leukoderma.

In contrast, excoriation refers to a wound or scratch on the skin, psoriasis is a chronic autoimmune condition that leads to the development of red, scaly patches affecting the skin, and steatoma is a sebaceous cyst filled with sebum. None of these conditions involve the loss of skin pigment in the same manner as albinism.