(of mercury) to refuse to amalgamate with another metal because of some impurity of the metal; lie on the surface of the metal in the form of minute globules.
8.
to disintegrate into minute particles.
Origin: 1200–50; Middle English; special use of flower. Compare French fleur de farine the flower or finest part of the meal
early 13c., flur "flower," in the sense of flour being the "finest part" of meal (cf. Fr. fleur de farine). Spelled flower until flour became the accepted form c.1830 to end confusion. See flower.