v. to flow, spurtn. a rill, a small streamn. a spinning topn. a pellet, a granule, a small beadn. rich copper ore remaining after removal of low-grade material; a droplet of copper suspended in molten slagn. A nugget of virgin metal.n. The button of metal from an assay.v. to produce pellets by forming a molten substance into droplets which solidify while falling