MacNeal tetrachrome blood stain

Mac·Neal tet·ra·chrome blood stain

(măk-nēl'),
a stain for blood smears composed of a mixture of methylene blue, azure A, methylene violet, and eosin Y.

Mac·Neal tet·ra·chrome blood stain

(măk-nēl' tet'ră-krōm blŭd stān)
A stain for blood smears composed of a mixture of methylene blue, azure A, methylene violet, and eosin Y.

MacNeal,

Ward J., U.S. bacteriologist, 1881-1946.
MacNeal tetrachrome blood stain - for blood smears.
Novy and MacNeal blood agar - see under Novy