Today's Word of the Day means...
powder pow·der (pou'dər)
A dry mass of pulverized or finely dispersed solid particles.
Any of various medicinal or cosmetic preparations in the form of powder.
A single dose of a powdered drug.
[sense of running away probably fr similar dust fr the notion of raising dust as one runs; perhaps, in view of take a powder and run-out powder, the asi notion is reinforced by that of taking a medicinal powder, esp a laxative, so that one has to leave in a hurry, or perhaps a magical powder that would cause one to disappear]