leukocyt-
combining form 
or leukocyto- also leucocyt- or leucocyto-
Etymology: New Latin, from International Scientific Vocabulary leukocyte 
 : leukocyte 
< leukocytopenia >
< leukocytosis >
or leukocyto- also leucocyt- or leucocyto-
< leukocytopenia >
< leukocytosis >