Final answer:
The term for white blood cell deficiency is leukopenia, leading to increased susceptibility to infections. Leukocytosis, leukemia, and leukoderma are different conditions affecting white blood cells or skin pigmentation.
Step-by-step explanation:
The medical term for the deficiency of white blood cells is leukopenia. This condition is characterized by a below-normal production of leukocytes (white blood cells), making an individual more susceptible to infection. In contrast, leukocytosis refers to an excessive proliferation of white blood cells, which may also result in a dysfunctional immune response. Leukemia is a type of cancer involving leukocytes where abnormal white blood cells proliferate, and leukoderma refers to a skin condition involving the loss of pigment.
Leukopenia is the deficiency of white blood cells. It occurs when too few leukocytes are produced, which can lead to a weakened immune system. Compare this with leukocytosis, which is the excessive proliferation of white blood cells. Both conditions can pose health risks, but in leukopenia, the individual is more susceptible to infections due to the low number of functional white blood cells.