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Muller Mul·ler (mŭl'ər), Hermann Joseph. 1890-1967.
American geneticist. He won a 1946 Nobel Prize for the study of the hereditary effect of x-rays on genes.
Müller Mül·ler (mŭl'ər, myōō'lər, mü'-), Johannes Peter. 1801-1858.
German physiologist who studied the physiology of the nerves and sense organs and described (1825) the müllerian duct.
in painting, an instrument used in conjunction with a slab to grind artists' colours by hand. The modern muller and slab are made from glass, although from ancient Egyptian times until the 18th century porphyry was invariably used. After the introduction of the mechanical paint mill in the middle of the 19th century, the muller and slab became obsolete except when small quantities of pigment had to be ground