alopecia
Pronunciation:
/ˌæl.əʊˈpiː.ʃə//æloʊˈpiː.si.ə/noun
Definitions
Baldness.
Deficiency of the hair, which may be caused by failure to grow or loss after growth.
Loss of hair (especially on the head) or loss of wool or feathers, which either happens naturally or is caused by disease.