spitting
nounThe act or practice of expectoration.
nounAn appearance seen on the surface of silver which has been melted in considerable quantity and then allowed to cool slowly, protuberances like miniature volcanic cones being formed just as the surface of the metal begins to solidify, through the orifices of which oxygen gas escapes, sometimes with sufficient violence to throw out bits of the molten metal.
verbPresent participle of
the act of spitting (forcefully expelling saliva)