basophil leucocytestaining where they combine with nucleic acids, e.g. fuchsin as used in the Feulgen stain for DNA.
basophil leucocytea type of white blood cell (of the GRANULOCYTE group) which takes up the stain of a basic dye. Basophils form a tiny proportion of the adult human leucocytes (about 1%), being produced in the bone marrow and have a function which is probably associated with the IMMUNE RESPONSE e.g. in chickenpox infection.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005