(n)loss of hair (especially on the head) or loss of wool or feathers; in humans it can result from heredity or hormonal imbalance or certain diseases or drugs and treatments (chemotherapy for cancer)
{ ‖ } n. [ L. alopecia, Gr. 'alwpeki`a, fr. 'alw`phx fox, because loss of the hair is common among foxes. ] (Med.) Loss of the hair; baldness. AS [ 1913 Webster ]