1. present participle of toss.
2. the motion of something that tosses; a throwing or sudden rising and falling.
3. the process of washing ores by violent agitation in water, in order to separate the lighter or earthy particles; tozing.
4. A process for refining tin by dropping it through the air while melted.
5. used to disparage or curse someone or something.

1. the act of throwing upward; a rising and falling suddenly; a rolling and tumbling.
2.
3. A process which consists in washing ores by violent agitation in water, in order to separate the lighter or earthy particles; -- called also tozing, and treloobing, in cornwall.
4. A process for refining tin by dropping it through the air while melted.

1. in the refining of metallic tin, the dipping up of the melted metal in ladles. and pouring it back into the pot whence it came, thus by exposure to the air causing oxidation of the foreign metals and other impurities which accumulate as a scum on the surface of the refined tin.
2. the act or operation of one who or that which tosses; specifically, a mining process (also called chimming) which consists in dressing ores by the method described under toss, v. t., 3.