Leucopathy is a medical term used to describe any disease that affects the white blood cells. Synonyms for this term include leukopenia, leukocytosis, and leukoencephalopathy. Leukopenia refers to a decrease in the number of white blood cells, while leukocytosis refers to an increase in the number of white blood cells. Leukoencephalopathy is a term used to describe a specific type of brain disease that affects the white matter. Other synonyms for leucopathy include lymphocytopenia, lymphocytosis, and thrombocytopenia. It is important to understand the different synonyms for leucopathy in order to properly diagnose and treat diseases that affect the white blood cells.