Emily Dickinson Lexicon

MUL'LER, n. [Fr. moliere, mollette; L. molaris, from mola, a mill-stone.]

1. A stone hold in the hand with which colors and other matters are ground on another stone; used by painters and apothecaries. Bailey. Encyc.
2. An instrument used by glass-grinders, being a piece of wood with the piece of glass to be ground cemented to one end, either convex in a basin, or concave in a sphere or bowl. Encyc.